ALLISON Swapping my Dodge Ram CUMMINS 2500

[@TheRoostersGarage]

Looking for merch?: roostersgarage.fans/Merch Interested in Amsoil for your ride?: www.amsoil.com/?zo=6377637 Both ways help fund the channel. I have lots of big ideas I want to do and your help will bring them to life.

[@billgreen5490]

ATS Diesel makes an Allison conversion that doesn't require grinding the block and its compatible to the existing computer with no programming needed. Base price approximately $12,000 for a direct bolt in and "plug and play" electrical.

[@TheRoostersGarage]

@@billgreen5490 Yeah, but it's ATS and all the negativity that comes with. Plus they are still new at the Allison where CAConversions has been at this for over 20 years. A little block grinding, cutting and splicing wires, but I'm very confident I have a much better package than what ATS is putting out. I've watched their transmissions get torn down and it's not quality parts that went in.

[@michaelgalea7509]

Ams oil is shit, look into schaeffers oil

[@TheRoostersGarage]

@@michaelgalea7509 I’ve got a friend who runs Schaefer and really likes it. I started running Amsoil in my AAM axles because that’s what everybody suggested. I’ve also got another friend who ran Amsoil in an engine that had a manufacturer recall for excessive engine wear and when he took his in at 100,000 miles the dealer said it looked like a brand new engine and told him to keep running whatever oil he was running.

[@Jon-O.]

@@michaelgalea7509 not one Schaeffers product has gone 409,000 mile OCI Amsoil has. Yeah you read this right Amsoil Signature Series has done this and literally blown the doors off the competition for decades but hey you have to do your own homework I'm not gonna do it for you. The testimonies are out their . Many many many it's also why Amsoil has secured the most commercial accounts to date. But I'll just keep using it wif my tinfoil hat while my mpg is better and maintenance cost reduced less than conventional oil changes and engine life extended.

[@PerrynBecky]

What separates the tech/mechanic from the grease monkey, is tenacity. You have tenacity and you learn from your mistakes. I was an auto mechanic for over 40 years, and I've did my share of trial and error modifications on things as well. That's how you gain skills. The school of hardknocks has a cruel mistress for an instructor, but the lessons learned separate the men from the boys. Don't feel bad. It fought, but you fought back.

[@TheRoostersGarage]

Wow!! Such an amazing comment, thank you so much! I have certainly gained skills from this modification and it's always cool to be able to look back and know how beaten you were and to know you clawed your way back and now you get to reap the fruits of your labors. I absolutely love doing this stuff and sometimes I may hate the job, but in the end I finish it and get to enjoy the finished product.

[@PerrynBecky]

@@TheRoostersGarage That's how it was for me too. It was a job that I "loved to hate". I'm disabled now, but I miss being able to tinker with cars like I used to, and I even like the modern muscle cars as well. My dream was to take a 72 Demon body and marry the entire drivetrain, suspension, braking system from a 2018 Demon, with all the creature comforts of the 2018, but that's a dream that I hope some KZbinr does while I observe.

[@TheRoostersGarage]

That would be an awesome combo! I've seen some new body suspensions put on the old classics but never seen anybody do an entire body swap to the new rolling chassis.

[@Ashroyer86]

Mechanic is even a loose term. Technician is where its at.

[@travis1572]

No such thing as bolt on application, get ready for trial & error Great job Gonna try this on a 74 Winnebago Wish me luck😢

[@michaelbenoit248]

The best part of all of this is that once this is all done, there is no Dodge in the drivetrain.👌

[@TheRoostersGarage]

I guess you are correct. Cummins engine, Allison transmission, AAM axles

[@allensandven0]

Does Allison do seats and window switches ?

[@fredblair8694]

Cost of conversion please

[@TheRoostersGarage]

@@fredblair8694 Right about $16k with the wiring

[@fredblair8694]

@@TheRoostersGarage thanks for the prompt reply sadly I'm to old to poor to consider this but sure you guys do a great job I've been otr truck driver for 57 years her in usa and back in uk drove some of the biggest earthmoving dump trucks with Allison transmission absolutely the best at well over 100 tons gross seamless shifts and power delivery 👍

[@chipbrown3742]

Good video I have a 2011 3500 Ram 500 HP. I also went with the Allison 1000 from C&A conversions. About 18 months ago. K C & Dave are awesome. After watching your video. Having Dave and his crew do the installation. Worth every penny. They are the best!!!

[@TheRoostersGarage]

They are really great people. I did this install in September but wanted to get quite a bit of driving on the truck before releasing the video. I was hoping to have a fix for the loss of 4 low included in the video but I’m still working on a solution and so are they.

[@billywilliams6853]

How many dollars to make the swap????

[@TheRoostersGarage]

@@billywilliams6853 It varies based several conditions. If you are considering it, contact CAConversions at www.caconversions.com/inquiry-form and they will get you a quote.

[@caconversions4591]

@@billywilliams6853 Give us a shout, be happy to get you a quote for your application.

[@charlieromeoh]

Reminds me of manual swapping my 01, I gutted the donor truck and my truck and did most of the work myself. Never want to do it again 🤣 I had my doubts but was super proud when it was all done and driveable !

[@TheRoostersGarage]

That's awesome!! Yeah, I never want to do this again either.

[@roadkill_wildcat4742]

Gonna be doing the same soon to my 01. I'm not looking forward to it😂

[@charlieromeoh]

@@roadkill_wildcat4742 it's not terrible. I did it in my driveway with little help and basic hand tools.

[@anonymousasusual9413]

My hats off to you sir!! I just completed the ATS Allison conversion and I have to say. They have done the unthinkable!! They made this conversion SO SEAMLESS!!! I didn’t have to do 3/4 of the things you had to do. They made this so, so factory like, you wouldn’t believe it! I have to really, REALLY COMMEND ATS!!! For making this conversation so easy!! I wouldn’t have done it with what this conversation had to make you do. However great job on your conversation👍 I hope it’s serving you very well!

[@TheRoostersGarage]

@@anonymousasusual9413 They had just come out with theirs when I decided to order this one. I do like their electronic integration a whole lot more than what I've got. Plus their bell housing that keeps the starter on the driver's side instead of a Ford starter right under the turbo

[@michaelpee9471]

Thank you for posting this. I have contemplated this for a while and seeing how much work you put in has convinced me to not tackle such a monumental task.

[@TheRoostersGarage]

When I decided to take this on myself, there weren't many videos on it and I knew I wanted to document everything. It's a huge process, but CA will do it for you.

[@jameshardin4326]

I've seen several people do this and they don't survive behind a mild Cummins.

[@TheRoostersGarage]

@@jameshardin4326 Really?! CA has been doing this for 20+ years and the Cummins is their bread and butter. One of their employees has a 3rd gen Cummins and hauls heavy loads all the time. Only time will tell and I am quite talented at breaking stuff.

[@Rc51con]

@@TheRoostersGarage No. His comment is a bold faced lie lol. He’s acting like 30,000 people have done this and half of them have failed 😂 I doubt there is even 30,000 total Allison swapped “rams” on the road I can’t wait to be ally swapped in my truck. Not wasting my time on a 68 cause it’ll still drive like a 68 at the end of the day

[@TheRoostersGarage]

@@Rc51con I always try to find out more when people say things like that online. It's not like we can have a face-to-face discussion and work things out like that. Honestly the only Allisons I've heard of with issues are in GM vehicles using GM programming. Apparently something in there is the issue. I went with CA because they offer the commercial programming that's supposed to be the same as what's in busses, box trucks, etc. that all go hundreds of thousands of miles hauling heavy. Much more than I'll ever do with my truck, but mine should run 1 million miles without a hitch.

[@bobvincent4841]

You proved to be a stubborn badger standing it's ground against a lion of a project! You prevailed and now you get to enjoy eating the fruitage of your labor. So satisfying to see all that working as good as, or rather, EVEN BETTER, than factory. Sweet truck!!!

[@TheRoostersGarage]

Thank you very much! This has got to be the best comment ever!

[@DonkeyGap750K3Gixxer]

I’ve driven lots of 6.7l Cummins w/allison transmissions/mostly found in medium duty 4300 international trucks 👍🏼they work very well too just like they do behind the Duramax.

[@OldtimeIronman]

Gotta admire your persistence, there's a reason why I've insisted on stick shifts for the last 20 years...

[@TheRoostersGarage]

That would have been a lot easier but my wife can’t drive a stick

[@n6mz]

I bet she could learn in no time. She'd end up being a smoother shifter than you ;-) Loved the video.

[@TheRoostersGarage]

@@n6mz She was learning until she killed one of my previous vehicles at a stop sign and she got nervous as people were waiting behind her. I tried to get her back out, but she was done after that. She says she can’t do it and I keep telling her she can if she wants to

[@DynoDieselWagon]

I refuse & Can't drive an automatic .

[@patrickbass3118]

Hey brother I am new to this channel - great content! I appreciate you taking the time to film, edit, and share this project. I have a 2010 6.7 I'd like to do this tranny swap with. Been told by every mechanic i know these are the very best transmissions. The company i work for has a fleet of Duramax trucks, never had a transmission problem. All I'm saying is, you can't go wrong with an Allison transmission. 😁 Thanks again, and keep doing what you do!

[@TheRoostersGarage]

Thank you so much! This was definitely a lot of video, but my hope is to be able to help people with all my videos

[@francishier4698]

Good to see you in a better frame of mind than the other day some times life gets to be to much but keep your head up and truck on man your doing a great thing

[@diesel_enduro]

I love your new song "Rich Men north of Richmond" Your a legend on that acoustic bro...

[@TheRoostersGarage]

That's not me. I've seen him and we do look similar though

[@ericlund941]

🤣🤣🤣🤣🤣🤣🤣🤣

[@ericl5973]

More grinding and cutting than I expected from the conversion. I have a G56 in my 2006 so I likely won't be converting. Maybe when I get old and tired of rowing through the gears.

[@TheRoostersGarage]

I overground and the instructions were missing but I didn't realize it. I had a couple sheets and when I got to the wiring and ran out of sheets and their videos I called them. There's a big spot on the grinding that says "DO NOT OVERGRIND".

[@TheRoostersGarage]

@Phil Ward Well I wanted a Mega Cab 3rd gen and this one came up for sale so I jumped on it.

[@jameshenson4871]

ATS Allison conversion doesn't require grinding.

[@Gene4666]

This upgrade turns this truck 8nto a beast and retty much bullet proof. Love it!❤

[@TheRoostersGarage]

That was exactly the idea. I like to fix problems, not band-aid them

[@tigerseye73]

Wow, a lot of work, but you stayed on it and it seems to run great! Thanks for sharing.

[@TheRoostersGarage]

Thank you! Yes, it's a ton of work and it runs better than it ever has. This truck was a bucket of problems when I bought it and I've been getting them all resolved.

[@alaskax]

Thanks for the great vid, which I just found. Have talked to Dave at CA a couple of times in the past 2 weeks and am about to spring for the Allison for my 2000 24 valve which has the 47re. I see no comments here about trucks that old, but Dave says no problem. I notice ATS only starts with a solution for the 48re. Used to race my truck (15-18 years ago), would do 1/4 mile in 13.5 seconds. SINCE then, went to compound turbos, even bigger injectors ("200 hp"), and run about 80 psi. At least 100 hp more than when I raced. I had everything ATS had to offer- billet shafts, valve body, 5 star torque converter. Anyways, fully built 47re. I've snapped 2 input shafts, and have had additional failures, the last one towing a 10,000 lb trailer to Alaska. Anyways, I estimate I've got about $20,000 in that tranny alone. The last decade I have NOT been running extra power- too expensive! Only 180K miles, but massive rust. Now in the last week, hauling firewood, tranny slipping, trouble shifting... I'm done with the constant $2k-$3k repair bills. Sorry for the rambling, but happy to see your process! Really surprised to see comments here about how strong the 48 is. Scratching my head on that. SO looking forward to (very likely) swapping with a built Allison.

[@TheRoostersGarage]

A lot of the comments are in regards to truck pulls, etc. but I'm pretty sure those get torn down and rebuilt pretty often. 350 feet is one thing, pulling a trailer across the country is another. I know CA has done older trucks - they've been at this for 20+ years. Your truck sounds like a beast! That's what I love about diesel trucks, you can race it, then pull a trailer to Alaska. I don't see any funny cars or NASCAR trucks pulling trailers around! That's a lot of money put into a transmission that keeps having issues. If you go with CA, they will treat you right. There's not many companies left that treat customers well, but CA is one of them for sure. When I picked it up after having to ship it down to them, KC wanted me to call her when I got home just to make sure everything was good even though I was spending a week in Florida before going home. I'm mostly stock on my truck, but it had been through a weight loss program before I bought it, then I upgraded the turbo when the factory one started acting wonky at 220k. I finished with the Allison swap November of last year and ran it for a while before uploading the video so I could also report how it was going after many months of use. I've just been learning the new transmission and how it behaves in different conditions. I don't feel the boat behind the truck anymore and pulling up the boat ramp I was at 1200 rpm instead of the 2000 I was at before the swap. My old gooseneck trailer that I haven't yet weighed pulls great now. The old transmission always felt like I was dragging an anchor, but with this one the power goes to the ground. Heck, I've even spun tires with the gooseneck hooked up while pulling out onto a road.

[@alaskax]

@@TheRoostersGarage really appreciate your response, not expected as I know it takes a lot of time! I read all the posts here and all your responses are really helpful to many trying to make correct decisions. So thanks for that. I have my own KZbin channel and I actually think I'm going to put some effort into videoing the whole process for a 47re. The dream of changing out that transmission has been with me for at least two decades :-) I love my truck, it has lots of sentimental as well as practical value still, but I want to be able to use some of that power again...

[@TheRoostersGarage]

@@alaskax Thank you! Go for videoing the process! I had almost 40 hours of footage for this video because I wanted to get every facet of it to help others out.

[@karenhemry6370]

No problem at all doing the older trucks, Have a bunch of them out there running the streets.

[@steveportice3560]

I finally got my ATS DIESEL ALLISON CONVERSION KIT, looks a lot simpler then the kit you got. My bel housing bolts directly to my original one, my starter stays in its original position and my transfer case just has a 5/8 adapter plate, and it doesn't use a an adapter shaft between the transmission and transfer case

[@TheRoostersGarage]

ATS build a brand new bellhousing for the mating of the two. I would like to run that bellhousing and get my Cummins starter back. That's interesting about the transfer case end.

[@normansilver905]

Great selection! AND it is now a truly tough, dependable power train too.

[@TheRoostersGarage]

Thanks!

[@Nathang2233]

Man you should have got the 68 rebuilt. They have those things so dialed now with tunes and hard parts. It makes the Allison a dinosaur in comparison

[@TheRoostersGarage]

I have heard lots of horror stories on built 68's, and CA replaces a lot of built 68s with Allisons. Do it once and be done

[@RenegadesGarage]

Rooster's Garage.. Looks like a lot of work but worth it in the end. Thanks for sharing it.

[@TheRoostersGarage]

It sure was a ton of work, but I wanted people to know what to expect with this kit. I still think it's worth it and think the only transmission that's better would be a manual, but I'm pretty old school and would have only manuals if it were up to me

[@kenuber4014]

Man, I got stressed just watching you!! I would have blown a gasket! You were pretty cool headed, i gotta give you that.

[@TheRoostersGarage]

Don't be fooled, there was a bit of wrench throwing off camera. It was very stressful at times, like grinding the block and then again when nothing was going right. It wound up being worth it in the end.

[@jesscolliflower5531]

Been damn near 20 years since I heard a Ernest joke.. now I gotta subscribe plus lookin into either a Allison or a Randy’s transmission still can’t decide.

[@TheRoostersGarage]

LOL! Thanks. Ernest is dearly missed. I looked at Randy's as well. I've got over 10,000 miles on this with zero issues. Good luck in your decision.

[@jesscolliflower5531]

Would you say your setup is about the same in cost?

[@TheRoostersGarage]

@@jesscolliflower5531 I can’t remember theirs exactly but it seemed everyone was hovering in the $15k neighborhood and with my wiring I’m about $16k

[@daviddroescher]

Biggest difference between light duty ( gm) and medium duty( class4,5, and 6 /4500ect) Allison programming is the torque converter clutch locks have way through 2nd gear( fills like 2-3shift) and stays locked down to 15mph . This reduces Trans Temps and improves trasn life exponentially, and gets rid of the soccer mom buttery soft shifts. It reduces temperatures so much that both my Trans builder and CA C required that I rerouted the cooler lines to go out front first then the liquid to liquid ( big log on the side of the cummins) to warm the fluid back to operating temp, Allison programming dose not allow learning below 148°f Trans temp. Dave ( owner of CA Conversions ) was very good with assisting me getting all the little details figured oit.

[@TheRoostersGarage]

In my kit they have a thermostatic bypass that routes the fluid back into the transmission until it reaches a certain temperature. That's the thing mounted underneath the transmission and they explained the reasoning to me as well. The transmission controller from CAC uses the Allison programming. The shifts aren't soft and the torque converter locks up in 2nd gear. Pulling my boat with this transmission is a world of difference from my last transmission and it's only about 5000 lbs or so.

[@daviddroescher]

The difference between CAC and my builder was that Holen Fox transmission, was to use the liquid to liquid on the return line to bring the Trans up to temp at the same rate as the motor . I have -20-30f Temps to deal with and the way you have it setup it won't warm up for me . I did add a 20k btu cooler on the "to cooler" line and a missimoto thermal oil bypass(160°f) to bypass the big double pass cooler for loads builder requiredupgradingthe lines to3/4". My builder strictly works on medium duty trucks/ busses he built it for 2k tq don't care about hp as 1st gens make 3:1 (tq:hp) and top out at ~600hp/1800tq with a race VE pump 400hp/ 1200tq with stock pump. A p pump making 400hp is only 800tq due to fixed timing. Agen well done . It took me about 1 month to do the install wille workin 80-90hrs a week working on Fed Ex Freightlander delivery trucks( sorce of my cores). Trans tunnel had to be pushed up ~ 6" and widened ~9"on my 91.5 2wd it's very tight no room for a 4" exhaust between the starter and frame so I ran it through the finder and down the outside of the frame.

[@TheRoostersGarage]

@@daviddroescher Liquid to liquid? That’s cool! I don’t have to deal with that kind of cold here in Tennessee. I wish diesel stuff would be rated in torque instead of HP, even tractors are rated in HP and its crazy because they have so much torque and the HP number is pretty meaningless. Your truck makes mine seem easy! That’s a lot of customization to make this big trans fit. My buddy has a 90 or 91 4wd and I was shocked how small that trans was.

[@daviddroescher]

@@TheRoostersGarage W to W is on the passenger side of the block under the manifold for 1st gen . I went a little further on fording my truck. I used a Ford Silhouette mounted on the Fender Where the stock 2/0 cable reached . Then a key hot to both terminals on the starter. No chance for voltage drop to the signal.

[@TheRoostersGarage]

@@daviddroescher Nice!! I love to see how other people accomplish mods, especially when they’ve done it well.

[@christopherelliott3007]

Yeah but damn that thing is gonna be bullet proof!! Good video!

[@TheRoostersGarage]

Pretty much! Thank you!

[@Johnnyfreitas1]

I actually considered doing the swap but I traded the truck in for a 2021, 3500 DRW Chevy with a 10 speed. I’m glad I didn’t do it because you are having such a good time and I don’t miss my Dodge not a bit, thanks for running this video man big job

[@TheRoostersGarage]

Let me know how that 10 speed treats you. Like with anything new, people say it's garbage but I heard it's not an Allison 10 speed, even though it has their name. Honestly I looked at the 10 speed to swap it in too, but it was too new at the time so I stayed away.

[@kevinbrown4894]

Hi, the old-school Chevy inside door and window handle clip removal tool will work for the cooler lines..

[@TheRoostersGarage]

Thanks for the tip!

[@northerngunner2756]

I have always thought about doing this to one of my 01 dodge Cummings trucks but never imagined it would be such a project.

[@TheRoostersGarage]

It was not designed to be in a Dodge, and all the SAE adapter plates are too big to fit in the tunnel which makes this more challenging. Yeah, I thought I could stab the new transmission in the same day I pulled the old one out. LOL!!

[@soldier09r]

This was a GREAT and informative video, bro! I’m not a diesel guy but interested for the future!

[@TheRoostersGarage]

Thank you so much!

[@Woodywater]

This is one of the most special ED! After school program I have wasted my time on. Stop working on things!!

[@mikedaugharty5544]

My hat is off to you there Sir that was one heck of a job time consuming and patience beating you are the man

[@TheRoostersGarage]

Thank you so much!

[@DoubleA-ARon]

Great video, and the random humor... i was laughing out loud (I'm on a airplane at 36k feet... )

[@TheRoostersGarage]

Thank you very much, and that’s awesome!!

[@rooster72886]

You're gonna love that Allison i got one in my lb7 great transmission cummins finally wised up and went with a reliable trans for their hd line up

[@TheRoostersGarage]

Yeah, I've had it for a couple years now and I love it. I know they've been using the Aisin in the 3500's for a while. Is that the one you are referring to?

[@rooster72886]

@@TheRoostersGarage yea the aisin is good trans for towing don't get me wrong but the Allison1000 transmission imo is better only due to the fact of sordid oil pump and trans valve body when it gernades It ain't pretty but again just my opinion

[@TheRoostersGarage]

@@rooster72886 I've never had any personal dealings with the Aisin, but a friend was upgrading to a 3500 and I told him to make sure that's the trans he got. It has been holding up well pulling his camper so far

[@rooster72886]

@@TheRoostersGarage exactly the a great transmission is key when towing mine was stock but it's built now to a stage 5 ppe Suncoast transmission and was well worth the 10500

[@Carrs-Firm-Foundations]

Just video I've seen of yours, I enjoyed the build.

[@TheRoostersGarage]

Thank you!

[@alanosborne1947]

I'm looking at the weld on the rear drive shaft at the rear pinion and that is some of the sorriest welding I've ever seen. I'm not real sure but it looks like there is a hole they left when starting the bead. If you did the welding my apologies but that shaft needs to be rewedded by a reputable shop. You're doing a great job overcoming a few challenges but you're stickin with it.

[@TheRoostersGarage]

The bad thing is it was welded at a reputable shop…. He hates welding aluminum driveshafts and it shows. The front steel driveshaft looked great.

[@Richie_RHD]

i recently swapped my 06 to a g56... if i wasnt so hellbent on wanting to throw a stick, this would have been the path id have gone as well. I have an m2 as my Work truck and it has the a1k behind a 6.7 and its such a pleasure to drive around.

[@TheRoostersGarage]

If I didn't have to have an automatic on account of my wife and working in the city, I would have manual swapped it. I do love the Allison though. My 68 had over 200k miles and the torque converter wasn't doing much. It was truly a night and day difference

[@patrickbass3118]

Was your 6.7 stock with a standard? Just curious I'm looking at putting in an nv4500 it's a 2010 3500 with 24v 6.7 Stock auto trans, needs rebuild or replace. Debating what I want to put in. All my company work trucks are gmc duramax. All stock Allison trans in them, never needed repairs or replacement. Solid trans for sure! I've even considered just getting myself a GM Duramax instead just to have that sweet Allison transmission behind the engine

[@TheRoostersGarage]

@patrickbass3118 Shoot if it came with a manual I wouldn't be swapping to an auto. No, it came with a 68RFE that lasted over 200k. I looked at putting a manual in there, but ultimately decided the Allison so my wife would have something besides her car to drive if it was in the shop. I have Dad's old Jeep TJ with the 5 speed as my other vehicle so we still have 2 automatic vehicles

[@williamvanshellenbeck8643]

It would be awesome if CA Conversions provided a template for the exact grinding that needed to be done on the block. Just spit-ballin’ here.

[@TheRoostersGarage]

@@williamvanshellenbeck8643 Totally agree! I suggested that to them as well. It could be a cardboard cutout as far as I care. But, ATS has a bell housing that keeps the starter on the factory side. I'd love to swap to that bell housing!

[@hey_youtubeim_back2159]

Ive decided to use howards adaptors with ats electronics. Im going to rebuild my own allison 6 speed core that i have. Cant wait

[@TheRoostersGarage]

@@hey_youtubeim_back2159 Sounds like a fun project!

[@bluebird5100]

You did a really good job making this video.

[@TheRoostersGarage]

Thank you!

[@fredsmachinewerks4811]

Very nice job. Lots blood sweat and good job. Like to see how it runs when its all said and done. Cheers

[@TheRoostersGarage]

The end of the video shows me driving it around

[@tinybigbus1873]

Dude, you rock! I watched the video from start to finish. Were you happy with CA Conversions?

[@TheRoostersGarage]

Thank so so much!! I couldn’t be more pleased with CA Conversions. Outstanding customer service, great people, American owned, always willing to answer the phone and help you through issues.

[@hey_youtubeim_back2159]

Hello buddy. Could you give us an update of how the conversion is working for you? Maybe prison and cons and such. I'm pulling the trigger soon on this conversion. Want to make sure I'm as informed as I can be. Thanks a million for the vid and any updates

[@TheRoostersGarage]

A walk around video is coming, but to give you a quick update I have been able to pull everything I've needed with this, and this is my daily driver as well so it goes from pulling a trailer on the weekend to driving around town, taking kids to school, etc. The very end of this video is after several thousand miles of driving it. I didn't want to put out a video right after I had it installed, which was about Thanksgiving last year. I've only made one change to the CA kit, and that was the hoses. I went with hydraulic hoses because I was seeing some leaking issues with the ones from the kit.

[@hey_youtubeim_back2159]

@@TheRoostersGarage I'm subbed for the future video. Thanks for the reply and a huge thanks for the update

[@TheRoostersGarage]

@@hey_youtubeim_back2159 Thank you for the sub. Good luck with your decision.

[@bobbythomas6520]

Oh so you’re doing exactly what I’ve wanted to do a brand new 2500 mega cab with an Allison trans

[@TheRoostersGarage]

Except for the whole "brand new" part of that 2500. She had 200k when I bought her, but I love the 3rd gens and I'm gonna keep her around. I will tell you the Allison is a beast. I don't worry about it, it pulls everything I have great and I can't feel the boat behind me for the most part. Even my gooseneck trailer empty with the stock 68 felt like I was dragging anchor.

[@Z-Bart]

Way to persevere and overcome the obstacles. 👍

[@TheRoostersGarage]

Thank you sir!

[@Alex-bh2zk]

Will you be making a video driving around town/ interstate? I'm curious on the RPM's at 75-80 with the 3.73 and the Allison swap. Maybe one empty and one towing?

[@TheRoostersGarage]

The very end of this video I’m driving around town and I’ve got the chapter marker things so you can go right to it. It doesn’t lock into 6th until 73 mph with the 3.73 but yes I can make a video with more driving around. I’m pretty sure its still under 2000 at 80

[@otisbailey5455]

The 1k based on calibration has overdrives.

[@Wes_9519]

Dave is hilarious. Been there a few times when I worked in Nashville to get some driveshafts balanced.

[@TheRoostersGarage]

Yes he is! He's a salty guy, but I get along with that type of person quite well.

[@DynoDieselWagon]

CLEAN & POLISH HOUSING 👌🏼

[@gwood69]

The ultimate drivetrain a Cummins and an Allison I had no idea you could Do this

[@TheRoostersGarage]

Yeah, it's been very solid too. Lockup happens before second gear, fuel mileage is up a bit, and it tows like a dream.

[@ericreinoehl9402]

Daunting project, you won. It works

[@TheRoostersGarage]

It was very daunting, but worth it

[@Bigdaddyslasher]

The only issue I had with 68rfe was it liked getting hot when I towed my 40 foot loaded with Jeeps. It did not like a load hence why I sold it and bought a Aisin truck. Strange that Ram doesn't pair Allison with the 6.7 Cummins in medium duty trucks. The commercial trucks always have a Allison behind a 6.7 Cummins

[@TheRoostersGarage]

I know, right!! Dang school busses and box trucks have Cummins/Allison pairing. I heard from a hot shot driver with one you can get an Allison with a new Ram

[@bigpoppasjunk333]

I thought with the high output Cummins you had to get the Asain.

[@Bigdaddyslasher]

@@bigpoppasjunk333 the 4500 5500 trucks come with Aisin transmissions but the 6.7 Cummins has been detuned. The 3500 DRW and SWR HO trucks have Aisin as far as I know because the 68rfe can't handle the HP and torque. Unless they have changed everything.

[@TheRoostersGarage]

@@bigpoppasjunk333 I think, but I could be wrong, that when they went to the 6.7 Cummins there was no longer a HO option. I believe the Aisin is standard on the 1 tons, but not the 3/4 tons. I didn't buy it new so I don't know all the options and standard equipment. I think they might have phased out the 68's in favor of the Aisin on the newer trucks when they hit 1000 lb/ft of torque. Mine was only like 650 from the factory and the 68 could hold that for a while.

[@craigrandall8930]

Allison and Cummins, wish Dodge could figure this out.

[@michaelzimmerman9221]

ALWAYS check that everything is in the box!

[@TheRoostersGarage]

Yet another lesson I'm still trying to learn. Someone else commented to clean it BEFORE I start and I'm bad at that too.

[@natejames289]

Awesome man Oregon boy with a 2003 3erd Gen 240.000 now with transmission replacement they said its a ats tyranny rebuild from transmission solutions in Eugene or back when I bought the truck in 2014 or something only problem was dodge dealer 7000 in fule replacement tank pump they did nothing to engine pump vp44 and charge me 7000 gs need fass fule pump now to same me from this catastrophic fule deal happens again but I still love my problem child as many people say about the 2003 but standard as heck my truck till the end of my days lol.good video man really good job don't let anyone tell you otherwise thanks for sharing all your work sometimes take twice don't worry cool cool

[@TheRoostersGarage]

Thanks! I threw a Fass on my truck to keep my CP3 pumping for a long time.

[@TORAH-613]

Wow, and just thonk im wanting to do this.... without a lift. Thanks for the video.

[@TheRoostersGarage]

Doing it without a lift would have been how I did it if not for the very generous offer of a good friend who installed the lift in his shop a couple weeks prior. Hope this video helps you decide how you want to proceed.

[@lrobie123]

seems the 2023 RAM 2500 will have the Allison trans from the factory?

[@TheRoostersGarage]

I met a hot shotter that bought one and was loving it.

[@michaelvestal1]

They make a support for the back of trans bolts to transfer case I highly recommend because I have seen them crack I have it on mine

[@TheRoostersGarage]

Do you have a link? I wondered about all that weight hanging off the transmission.

[@michaelvestal1]

@@TheRoostersGarage I got mine from Wc fab I have a Chevy with same trans u can call them

[@TheRoostersGarage]

@@michaelvestal1 Thanks!

[@michaelvestal1]

@@TheRoostersGarage www.wcfab.com/images/F221287935.jpg

[@michaelvestal1]

@@TheRoostersGarage this is the one I ordered

[@petepeabody8905]

dedication at its finest

[@TheRoostersGarage]

Thank you!

[@jamesgeorge4874]

Our F650 rollback had a 5.9 / Allison 1000, it had 400,000 on it when we sold it, the cab and fenders were rough, but ran good, never had a trans issue, new spin on, drain and fill every 30,000, new sump filter every 90,000.

[@TheRoostersGarage]

That's a few miles! I'll be keeping up on the maintenance of both so I get a bunch of miles out of it

[@mitchellbachtel5183]

Good video very thorough with alot of info!

[@TheRoostersGarage]

Thank you! That was my goal. It's a huge modification and I wasn't seeing any detailed videos on it. I wanted to be able to give back to the community.

[@jamessells8440]

Guy, I greatly appreciate you showing the video 💯 I feel bad you bumped your head some 20 times, I’m curious as to what was your total money spent ? but I give you a 100 in regards to effort, patients, and willingness! but I’m suspecting you blew your budget. Nonetheless thank you for the video. I know it’s been a year ago but I skipped across this, I just bought a 2K3 gen 3 , I’m looking to upgrade a few things.

[@TheRoostersGarage]

Thank you very much!! The transmission was about $14k. Had I been able to source a used Allison for them to rebuild I would have saved a bunch

[@BloodCover]

Glad to know this, I’ll go with the 4” exhaust

[@TheRoostersGarage]

I love the sound of the 5" and if I took it to a shop for all repairs then I probably wouldn't care. I'm figuring out how to work around the 5" though

[@tripac3392]

The clingers! That's my kind of people!

[@PndaS2k]

You should do an update video soon on the truck and how everything is holding up. I would love to do an Allison swap on my 3rd gen.

[@TheRoostersGarage]

This already has 10,000 miles on it. I may have to do a walk around on it though and show all the mods I’ve done to it.

[@PndaS2k]

@@TheRoostersGarage Nice! A walk around would be cool.

[@johnhalter8317]

I don’t understand why the 48re is a way better Tranmission and take more abuse?

[@TheRoostersGarage]

@@johnhalter8317 6 speeds, no band adjustments, and the Allison is an industrial transmission the same as the Cummins is an industrial engine. The move to industrial means more durability

[@caconversions4591]

Give us a shout if we can help get your 3rd gen taken care of.

[@brandonbolen1495]

I did the CA Conversations kit as well! Karen and Dave accully came out to the farm to fix my "ATS" disaster!!! It works great, but if your truck is running at least 700 to 900 horse, you need to use differnt clutches and higher flow pump in the trans, I burnt out 2 because of my power rating in my 6.7.

[@TheRoostersGarage]

I don't know what my power is at, but I have only done airflow and a tuner so I doubt I'm much over 500 if that much.

[@brandonbolen1495]

@Rooster's Garage you should be perfectly fine then. I've got big injectors, cp3, fass 150, and big compounds on mine and it tears things up so. I hope your build goes smooth for ya!! Enjoy the new allison it makes a awesome difference!!

[@stevenportice7981]

I watched your video, and after I seen all the work and modifications you had to do, I watched the video from ATS DIESEL, I decided to go with there transmission Alison swap kit instead. Looks a lot nicer all the way around.

[@TheRoostersGarage]

Let me know how that one works out for you

[@13WHTSNK]

Any update to this? How did you like the kit?

[@jamesrobinson5801]

I was going to do the Allison Swap however after asking sooo sooo sooo many custom shops specializing in such they all seem to be in agreement to keep the 68 and have it bullet proofed as it will handle much more power and actually be more reliable.

[@TheRoostersGarage]

And see I heard just the opposite. I had lots of people tell me there's no way to actually make the 68 hold a lot of power, and if you do make it hold it won't hold it for long.

[@wyo_garage20]

That’s absolute BS. There is no disagreement here, the Allison is head and shoulders better than the 68. If someone tells you otherwise, they are a fool. Now, what people would typically say is build the 68, because financially it’s more viable. With an Allison conversion being ballpark $10k, that’s for a STOCK Allison. And a built 68 is $7-8k? Now, the Allison doesn’t need much to hold serious power (ever seen the shafts of an Allison?? Game over), they do need upgrades to clutches and converter to reliably hold power. And tuning is absolutely key; there was a day when the big Duramax trucks all ran a 47/48 re because transmission tuning wasn’t figured out enough to hold power. No one, and I mean no one, swaps an Allison out for a 47/48re anymore save maybe the absolutely dedicated racers. And I can’t think of any off the top of my head...

[@jamesrobinson5801]

@@wyo_garage20 that was definitely a passionate response...look, Im not a Transmission guru. Im going off what I physically have seen and hear from experience. I have yet to see an Allison swap at the Pulls so far. Though I only know a few Hot Shots, Ive asked them and they've never seen a swap for over road done. Now I do know of 3 trucks running built 68's that had pumps swapped, VB modified, some crazy clutch talk thats beyond my knowledge and a few other mods that involve cooling with heavy fluid flow. Two of those I don't believe have ever been disconnected since the build or tire replacements from their loads and both are I believe in the ball park of 180k-220k miles so far. They both haul custom build Toy Haulers for their crawlers and travel near every Friday to Sunday with tons of spare parts as well. Both pushing way more than me in the power range. One is pushing +800lbf⋅ft (02' 24V)and the other guy is up closer to 950lbf⋅ft (early 6.7l). I know these aren't "CRAZY" numbers and easily obtained however....The 3rd guy is an azzhole to his truck and beats the crap out of his auto (launching near every light, donuts, power braking, back and forth D-R-D-R while stuck in mud engine still under a little boost, tug of war on Asphalt, blatantly beats up on his 68) and its held up to the date with no issues. He likes to brag on his $6k "Bullet Proofed" trans he had built. Now he isn't pushing crazy mods and I don't know the extent of his work aside from injection and turbo work. I believe its all external mods but either way he beats on that poor truck so bad it hurts my soul. Aside from this useless info, Im getting at, I feel if the Allison was that great of a swap, Id see it more. Money isn't an issue for the group Im with but atleast here locally they all shy away from it and build the 68's. If not they swap for the NV5600, ZF6 or variations of the Fullers.

[@TheRoostersGarage]

@@jamesrobinson5801 @wyo_garage The Allison 1000 is a scaled down transmission from their heavy duty line. The 68 started life in a minivan, then was scaled up to the 545RFE where it did very well. When both the 68 and Allison 1000 were made the shaft sizes weren't really changed. The input shaft size on the 68 is pretty much the same size as the input shaft on the 545. I'm not pushing crazy mods either. Stock injectors, CP3, and a street tune but it can push another 200 hp which I never hit until I had the Allison in it because my 68 was on it's last leg. I don't care which transmission people want to go with. I chose the Allison because it's an industrial transmission and the Cummins is an industrial engine. Mating industrial with industrial makes sense to me. Plus having the 3rd gear safety lockout was a huge plus. When I take this to Texas rattlesnake hunting, I am not crawling under the truck unless there's fluid everywhere. Having that extra safety protection is key, plus this is the biggest vehicle on that ranch and pulling it might prove difficult so keeping it under it's own power was one of the major reasons I went with the Allison. I know guys love the 48's, and I know there's a ton of tuners who can work with the 68's. Not too many tuners for the Allison and truly I think that's why you don't see many swaps. I chose CAConversions because they use the Allison industrial programming. I've heard of way too many GM's running GM programming killing Allisons. Mine locks up fully at 15 mph and shifts hard. I'm okay with that because I don't drive a Cadillac - I drive a truck and I expect it to feel like a truck. Everyone has their own opinions and I'm not here to sway someone one way or the other, just to show what I've done.

[@wyo_garage20]

@@jamesrobinson5801 Yessir, very passionate because I literally live and breathe these things daily. Dodge/Cummins trucks all day long. I don’t own a shop nor work at one, just a passionate guy. I don’t intend to come of rude or anything so, I hope I didn’t. That said, the 68 really is a great transmission for its use. The issues it has are (largely) a result of throwing more power at it. Lots of power in 5th or 6th and roll into it? Recipe for failure, there simply isn’t much room to add adequate additional clutches to hold so you have the same clamping force as stock. But it’s a proven good unit, most people have little to no issues with them. The Allison swap is rare because for years there has been outright bad info, one guy pops up and claims he’s got it figured out, and some guys choke down the price and have issues. That guy disappears, I’ve seen it time and again over the years. Plus, if you’re a hotshot guy, running factory stuff is almost a necessity. Because you don’t want a custom Frankenstein creation when you rely on that vehicle daily. Down time trying to figure out what you have costs thousands. It’s easier to roll into a dealer with a failed built 68, get a stock one swapped in to get you by while your built gets worked on and then put back in. An R&R is literally a couple hours to a day tops for factory stuff.

[@Spiritualkiller]

Well done. I'm actually impressed

[@TheRoostersGarage]

Thank you! My goal with everything I do is to make it look like it left the factory that way and not to make some huge mess. Whether I accomplish that goal is another thing.

[@georgesimpson3113]

A piece of pipe for seal installer... and you didn't have to say you were from the south... we knew that from when you said "Cooler". LOL - So, would you do it again?

[@TheRoostersGarage]

LOL!! So what do y'all call them? I would absolutely do it again. It's so much better driving and pulling.

[@tristanoliva]

Personally I thing built 48re’s are better than an Allison but to each his own. Still a cool swap

[@TheRoostersGarage]

I wanted to stick with 6 gears but yeah, this is just one option

[@goruby2]

Thanks , and NEVER EVER VOTE DEMOCRAT!

[@Bigdaddyslasher]

You will vote Democrat when you're dead

[@mshort7087]

Nope. Never have, can’t believe that I ever will

[@davidkraft3690]

Excelrent conversion choice. Cost?

[@TheRoostersGarage]

About $16k with the rewiring. It’s pricy but cheaper than buying a different truck

[@richardrekedob962]

ATS now has a Allison conversion with no grinding on the block and the starter is original and on the same side !!! It is supposed to be a real plug and play ! They spent a lot of time on the small details ! But I still went with an all original because of the price 18-20 grand for a tranny is a bit pricy ATS was a bit cheaper but I needed it fast and I got an factory warranty! I’m glad I didn’t do what you did !!!

[@TheRoostersGarage]

ATS has had a very troublesome past when it comes to transmissions, and I sure didn't want to be their guinea pig unless they were going to install it for free. I was very nervous about the grinding, but even with my overgrinding there's no issues. Apparently these blocks are so ridiculously strong that it's nothing to worry about, but I wholeheartedly understand. I actually was trying to decide for a year because I knew the transmission was close to needing either an overhaul or a replacement.

[@caconversions4591]

Problem with the bellhousing they are using, you have to run their proprietary tourque converter that only they make. Its and Allison/68RFE hybrid. Where are you gonna go when you need a replacement and can't have your truck down for days.

[@richardrekedob962]

Yeah I looked for a year too but the 18,000 price tag was the real determining factor! I got a factory reman from the dealer out the door for 11,000 yeah it’s junk but it has a 4 year warranty so I can take it back to any dealer ! And it’s not mis matched and it’s still factory everything !!! But I wanted the Allison but gawd 18,000 dollars just a lot and grinding on the block is not what I want for my truck on a 2017 !!!

[@caconversions4591]

@@richardrekedob962 18k is a bit on the high side, was that with them installing it as well?

[@TheRoostersGarage]

@@richardrekedob962 I was only about 14,000 for the transmission, $2,000 for excessive marine wiring, bus bars, new crimpers, relays, etc. All in was less than $16,000 for me. I couldn't handle paying 11,000 and saying "yeah it's junk". My dad always told me that adding a little on to the purchase price to get a lot more and you don't look back years later and regret not spending that extra little bit is worth it. If I could have gotten a used Allison for CA to rebuild, then it would have been cheaper but by the time mine finally decided to stop working well, I didn't have time to a used Allison.

[@mikecox135]

Does the check gauges light and the lighting bolt light stay on from swap or is that another issue?

[@TheRoostersGarage]

That's another issue. My computer that controls the alternator messed up and I'm running an external voltage regulator so now there's a persistent code because the alternator isn't switching like the computer expects. I also had a failing turbo at the time, so that was another code being thrown.

[@caconversions4591]

In all of the conversions we do, no lights come on at all.

[@alittlebitofeverything5090]

New Subscriber here. I felt your pain with that adapter plate lol. It seems no matter what project I have, it becomes the most complicated one! Great video!

[@TheRoostersGarage]

Thank you for subscribing! Yeah, I have a knack for taking an easy project and turning it into something harder.

[@cole1407]

Instead of notching your transmission and adapter plate you could of relocated your coolant bypass kit to the 3rd rear side coolant plug, just take the bolt hole measurements have a machinest counter sink to allen head bolt holes and it will work on the side of your block.

[@TheRoostersGarage]

Oh wow!! I didn't even think of that! Thanks for the excellent tip!

[@ldwalker1000]

You did a good job putting in a new transmissions.

[@TheRoostersGarage]

Thank you very much!

[@bentheguru4986]

Just a suggestion for those doing major works, take the time to get under it and clean it BEFORE you do stuff. Makes a lot cleaner job and less extra work trying to keep crud out while working.

[@TheRoostersGarage]

That's great advice, and I always forget until just after I make the vehicle unable to run. On this one I was draining the transfer case or transmission when I had that thought.

[@dmax06]

Hey man, great gob showing a lot of detail! I've seen several vids of guys using a soup can of same size over the rear seal and tap away. Merchant Automotive sells one with their logo on it. Been thru that one myself. Back to the vid. Almost done

[@TheRoostersGarage]

That would work and I’ll have to check out Merchant Automotive as well. Thanks for the tip! Before I did this swap I couldn’t find any videos with any level of detail showing how it was done from start to finish, so I wanted to video the entire thing and at the very least let people understand what this level of undertaking is. Then for that person who’s stuck on something, I wanted this video to be able to answer their question and get them back to work.

[@Sokolov812-lz5ov]

the 68rfe is about 260 pounds wet the Allison is 369 dry. i put a alli behind my 12v cummins and would never go back.. thanks for sharing

[@TheRoostersGarage]

@@Sokolov812-lz5ov I'll be getting a 12v Cummins as soon as I finish another truck I'm working on. I'm planning on putting a manual behind that one. And yeah, the Allisok is quite a bit heavier. The 68 was no trouble pulling out but the Allison made me man up some more, lol

[@markrich3271]

Good luck with your new transmission.. Im curious why not 48re swap it . They are one of the best transmissions ever built and so easy to work on?

[@TheRoostersGarage]

I didn’t want to drop from 6 speeds to 4, and didn’t want band adjustments.

[@markrich3271]

@@TheRoostersGarage I truly hope it works out for you. Keep us updated.

[@TheRoostersGarage]

@@markrich3271 Thanks. It's been good for the first 10,000 or so miles and I sure hope it keeps up.

[@markrich3271]

@@TheRoostersGarage chances are it'll probably be great then . Is your dodge stock?

[@TheRoostersGarage]

@@markrich3271 Not exactly. It's had a little done to it, but nothing excessive. More than anything it was just removing weak areas.

[@cameron878]

A year and a half later, how do you like it? Does that kit have the ability to defuel the engines on the shifts like the duramax/allison combo?

[@TheRoostersGarage]

I still love it, but no it doesn't interface with the ECM. The only shifts that are rough are when I put it in manual and downshift on a hill, but if I lift my foot it's better. It pulled a 14k dump trailer up my 30 degree driveway like it was nothing. My 68 had trouble pulling my 6k boat out of the water.

[@tcarable]

Wow a lot of work good job

[@TheRoostersGarage]

Thank you very much!

[@edgarrodriguez971]

Great job man!

[@TheRoostersGarage]

Thanks!

[@Patrick-xd8jv]

The Allison 1000 is a perfect match for the 5.9. It really improves the drivable. The only real problem was with wiring and computer. Fabricate shields to protect and reliability drastically improved. The big brown trucks would easily keep us with traffic in city or highway driving

[@TheRoostersGarage]

The Allison 1000 as far as gears was nearly identical to the 68RFE

[@rocklanddale8646]

ANOTHER YELLOW ALLISON! HOPE U R AS HAPPY WITH YOURS AS I AM WITH MINE!

[@TheRoostersGarage]

A bit ago I was pulling my gooseneck when I heard a faint pop, and the Allison immediately unlocked as my truck lost a bunch of power. Turns out that pop was my turbo gasket at the exhaust manifold blowing out. I'm hoping to have time to replace it this weekend and get back to having power again, but until that happened I truly couldn't even tell the gooseneck was back there. The Allison has done an amazing job so far and I look forward to many more years to come.

[@JohnDoe-gm5ux]

I should’ve done this on my 3rd gen when I had it. The 48 is the biggest pile of garbage. Runs hot, slips reverse with weight, slips first with weight going up hill. Finally ended up throwing a fully built 48 by suncoast but still same crap. By the time I had it built once then two suncoast units I could’ve done a Allison and came out cheaper and saved money.

[@TheRoostersGarage]

I hate to hear that! When I was researching which trans to do, I looked at fully built 68’s and I saw a lot of what you went though. I know the Allison was expensive, but so it replacing a transmission more than once.

[@caconversions4591]

Sadly we hear this far to often. Just putting band aids on things. They guys that brag about the 48, do a few runs down the dragstrip then rebuild it. So its great for like 10 miles LOL

[@JohnDoe-gm5ux]

@@caconversions4591 yes 100%. You can alway tell the folks that never had to use their truck other than pull the bass boat to the river or drive to the movies, the 48 is great!. Lol

[@caconversions4591]

@@JohnDoe-gm5ux absolutely far to many of those guys would be just fine with a half ton gasser lol

[@smiley3303]

I have 68RFE but seems to be pretty good for me. I have 190k on it so far. This is sweet.

[@TheRoostersGarage]

Mine was pretty good up until 225k

[@mikewill1891]

The 68RFE is an ok trans just doesn’t do well when it’s a work truck or towing a heavy loads a lot. The Asian is as strong as an Allison but nowhere as smooth and doesn’t going hunting for gears in traffic.

[@smiley3303]

@@mikewill1891 I am not sure why Ram is still offering both. I suppose the cost.

[@justingore9559]

How you liking the Allison and how's it holding up. I'm thinking about doing it on my 03 cummins

[@TheRoostersGarage]

I'm loving it! No issues to report. I recently developed a bad boost leak and as soon as it happened, the transmission unlocked as it sensed the "extreme load". I'm still trying to get that fixed, but truly nothing bad to report at all.

[@michaelloth5870]

Thank you for the video. A few weeks to get this done seems reasonable. Anyone know if this conversion would work in a 2000 Ram Cummings 2500?

[@TheRoostersGarage]

They have done lots of different years, and I'm pretty sure 2000 is one they've done

[@smilsmff]

Allison is closed down locally where to get parts from ,not available if they stopped producing altogether

[@randallthomas5207]

Just a quick question: Is the adapter to extend the transmission back to the transfer case long enough that a Gear Vendors overdrive/underdrive box could be added? Im guessing the front drive line might have to be lengthened. But it would certainly make it easier to keep the engine rope in the top of the torque curve.

[@TheRoostersGarage]

No, it's to fit the adapter shaft and studs that adapts the back of the Allison to the Dodge transfer case. Some T case models are used on both Dodge and Chevy and you could swap the input shaft in the T case as long as the bolt pattern lines up. This one I don't believe was used in a Chevy truck.

[@zacd7094]

Can we get a ride along or update

[@TheRoostersGarage]

Yeah I have a fairly recent video that's a ride along kzbin.info/www/bejne/mJ-amJV8ltSEb6M

[@ashleystovalldaman]

Man, this is a lot of work for a dodge. But good on ya, you finally have a transmission that can properly support that Cummings.

[@TheRoostersGarage]

Right!? An industrial motor deserves an industrial transmission.

[@igotursixx2665]

OMG dude what a job! Kudos to you brother I wouldn't even attempt it on my own.

[@TheRoostersGarage]

Thanks. I'm just a glutton for punishment

[@igotursixx2665]

@@TheRoostersGarage can't wait for your video on how it's going. I have the exact same truck. When I bought mine unbeknownst to me it had a Jasper transmission in. No issues with it yet.

[@TheRoostersGarage]

@@igotursixx2665 That’s awesome! I waited to upload this video until I had several months an over 10,000 miles on this mod. There will be more mods to come on this, as well as other projects.

[@bryce1916]

I work with heavy equipment and with diesels engines the size of your pickup and the 5 inch exhaust is way over kill for such a small engine .

[@TheRoostersGarage]

I know, but it sounds better than the 4 in my opinion. It’s got a deeper note. I went from a rusted out 4” to the 5 and it got quieter, lol.

[@carlcarlamos9055]

Thanks for preserving all this for us. Be forewarned though, if you take care of your truck, and it doesn’t turn to red dust, before you get all the good out of the truck Allison will probably have dropped support of that transmission. It’s happened before more than once. Tell that young fellow to mix some meat in with his ramen for more stick to the ribs. Take care and enjoy.

[@TheRoostersGarage]

Haha!! My kids can't gain weight and I can't seem to lose it. Life's funny like that! I'm hoping I won't need too much support for the transmission. I don't haul heavy loads too often, so I'm really hoping I've got the truck completely over built for my needs which I'm also hoping means it lasts longer. I do take care of it and I'm hopeful it returns the favor.

[@carlcarlamos9055]

It looks like the right auto trans for the job, and you’ve taken the pains to do a good install, so best wishes for long and uneventful use.

[@TheRoostersGarage]

@@carlcarlamos9055 Thank you very much!

[@CJE2007.5]

How are you liking the conversion so far? I was thinking about doing the same thing.

[@TheRoostersGarage]

I love it. Call KC at CAConversions and she will get you a quote. They are seriously one of the best businesses I’ve ever done business with. Top notch customer service, great people, even gave me a tour when I went to get my truck and we chatted for over an hour.

[@caconversions4591]

Give us a shout, be glad to answer any questions you may have.

[@orlandoperez3006]

man you are the man of perseverance but knows when to stop and let the experts finish up

[@TheRoostersGarage]

Haha, thank you!

[@weshawkins7165]

Now the question is would you do it again or build the one that was in it?

[@TheRoostersGarage]

Ooh great question! I’d do it again. I love how this locks the torque converter at 15mph, delivers the power to the ground like a manual, and pulls like a champ. Granted I haven’t driven one with a built 68, but I’ve heard how some of them didn’t last too long and after spending that kind of money I don’t want this to be a repeat job. I never could find the official rebuild duration on a built 68 but what I heard on forums looked like 100,000 or less. Heck, now I can take my truck to a heavy equipment mechanic for any tranny issues, lol!

[@andyjones357]

This mod should have been done first before all other mods lol

[@TheRoostersGarage]

Yes it should have. This was the most expensive thing I've done on this truck but I do wish I did this before anything else.

[@toddjcole6935]

Great video, now you've got a real towing vechile. On the transfer case do you think the stock one will hold up mine I had to fix a small crack from the tourqe that my new 68RFE that I replaced around 210,000mi on the original one. Mine is a 2007.5 I deleted everything when it hit 26,000mi and run a Smarty JR Tuner with the Middle Eastern Software, I've left it in the tow mode with all the settings set to the basic Tune. I've always said if Dodge, Cummins and Allison would just get together and just make the Heavy Duty with this set up then you would really have something. Hat's off to you, you did a great job even with some of the set backs that you encountered when doing the install. You did say you were in TN? right. Were about are you located at, I live N of Nashville up in the Whitehouse area off of 31W. If your close by I sure would like to be able to stop by and check it out if you wouldn't mind. Well anyway great job and great video.

[@TheRoostersGarage]

Thank you so much! I do think the stock transfer case will hold up. I’ve heard horror stories of the computer putting it into 4lo on the interstate so that may get some attention next. The first few years for the 6.7 seem to be the black sheep of the family. Everything is just weird and it was a transition so I think Dodge was scrambling to meet regulations and threw some parts together without as much testing as usual. I live in the Watertown area. Which 68 builder did you go with? I looked at several before going with the Allison.