WHY I HATE DURMAX TRUCKS

[@LeftLaneDiesels]

If you haven’t, I highly recommend pulling the oil cooler and cleaning the reservoir+replace the screen. That is the last line of defense and typically repeat failures will show the screen has been compromised under the oil cooler. Ford sells the oil cooler base gasket separately for reinstall.

[@davidbottles3035]

Will keep my 2003 5.9 Quad cab forever. No new junk, and will never have to remove the cab. Stupid engineering.

[@johnmarcum06]

Rebuilding my 04.5 5.9 right now

[@dartgts383]

I just moved back into a 98 24v , I won't ever own anything newer than 02 for a Diesel.

[@dartgts383]

@cali gdp let's see your junk in action 🤔

[@robertkington2084]

The cabs dont have to come off. They choose to pull them.

[@danielmeeks1403]

I can see what you are saying. I personally love my Duramax. I do not like working on Powerstrokes but I end up working on them cause they are always broke..

[@rustydusty1111]

Not a big Duramax fan but will say the few times I've been in tuned Duramax's with just low power tunes (tow tunes) they ran great. The Allison seemed to shift smoothly to me and haven't heard of any issues with them.

[@codkiller2025]

In general, the only time you have issues with an Allison is if you REALLY abuse it or you go a little too hot on the engine without doing anything to the trans

[@alanbagel2204]

Brutal honesty is a breath of fresh air

[@Blackneck1994]

LMLs are straight trash. Literally every single problem from 2001-2010 combined into one huge POS. Fuel system problems came back, head gasket problems came back, pistons still crack, and the crankshafts are even worse. Never understood the allure for those trucks. Worst Duramax made in my opinion. Miss me with that Allison defuel too, feels like shit. And now the 10L is even worse in it’s own way. They can hold decent power without studs, the IFS is nice when it’s unmolested, and the Allison works well for a stock truck; other than that, I don’t miss my LBZ truck one bit.

[@kirbywinters1291]

My brother had 2 of them and swore they were the best. He now has one sitting in his driveway with a blown motor. He has a 2001 7.3 dually that he uses and it has been a great truck for him.

[@andrewthielen5619]

No power no problems. 🤣

[@a.hagler3777]

“Go ahead and start a fight in the comments, guys”…mic drop and doesn’t even crack a smile. 🤣. Josh, you are a #Savage, my guy! LOL

[@justinadickes4770]

It's cool to see your outlook on it and being open and no bs, as always you guys are crushing....keep hammering

[@ppvfd121]

My first diesel truck was a ‘13 LML Dmax and I really liked it. As a grocery getter/street truck they’re hard to beat. Comfy ride, nice interior. I hated the way the Allison shifted and ended up getting my ‘17 Cummins g56. The way that LML hunted gears drove me nuts.

[@TeezleySPT]

I absolutely love my Allison. Never once said it felt clunky. Would rather tow with it versus our Ram 4500 with an Aisin anyday of the week.

[@CoyoteFTW]

Depends what year but that new “Allison” is a Ford transmission

[@mjc250]

I'm a diesel tech at a Ford dealer... we won't work on anything older than 2010 for diesels. All the parts are reman now for the 6.0 and 6.4. The parts are all complete trash. Took 5 turbos to get a 6.4 turbo that was good. After that, no more international models

[@jackfarms1038]

Good God, my Dodge 5.9 has been the parts runner for both my boys Ford diesel's. Always Mom's truck to the rescue.

[@JaegerWrenching]

I think you are 110% spot on with everything you said in this video. The allison is overrated and always has been, but that doesn't mean it's a bad transmission... The name makes people overlook its faults for sure. Most customers of mine think I'm crazy when i say I'd take a stock 6r140 over any other stock transmission, and probably a built 48 over any other built trans.. People ask me Why and i say this. My breakdown is as follows: 6r140s = bodybuilder, strong, calm, composed, and know what's expected of them, Allison's = 23 year old on roids, randomly strong with mood swings sometimes throwing tantrums/weights and likes screaming at people, 68s = late 20s in good shape, knows how to talk to women, and is quick witted and knows where he wants to be in 5 years. 5r110 is like an older brother to the 68.

[@justnsaliga8518]

5R110 By far my favorite got a stage 3 built by david fergouson red diamond diesel. its been living with 700 horsepower going through it and 1400 ft lbs of tourqe for years now and its still kicking. over 100k miles.

[@codymanning5071]

I call bull shit I cp5 swapped by Lb7 an now my Allison is way stronger an more reliable

[@lamarzimmermanmennonitefar5269]

I agree. I think my Tacoma has a stouter front end. Cast diff, forged tie rods on the rear of the LCAs

[@trisha8708]

That blue one looks familiar 😅😅. I’m glad you all are doing my truck!

[@Inline6Guy]

We have been experiencing a ton of bad, brand new parts straight from Ford as well. Not surprised on that at all.

[@jamesonmclean9503]

I would check the low pressure oil pump, the hpop’s are cavitating from lack of oil supply probably. Might want to check screen under oil cooler too for debris

[@bcbloc02]

They all could make stuff way stronger and better with just a little effort but the bean counter s keep the built in problems so people get tired and buy new trucks

[@dartgts383]

The seal repair sleeve is called a redi sleeve , they are a life saver.

[@donald61398]

Video title should say I don’t like duramaxs cause I like trucks that break frames

[@jacobbass9923]

On the 6.0 I could be wrong but I believe you can change it to the newer style HPOP like in the 05,06,07 trucks. Which from what I've heard they are a lot better pumps but not completely sure. Might be worth looking into.

[@Itsa_Mea]

Yes but you must also change the oil rails, the feed tubes, & branch tube. This would require pulling the engine rear plate so engine has to come out too .

[@cesarlaso356]

The Duramax fuel lines can be reduced by almost half. I bought a kit From DHD that was bigger and had less restrictions. LBZ owner at 650-680HP and 300k miles. I've been pretty happy with my Duramax. Only reason I bought a Duramax over a Cummins is because you can't find a clean Cummins.

[@wannabeutuber1]

Show me a stock sealed Cummins that can keep up with a stock sealed L5p 😂

[@markadams3858]

after the 6.0 and the 6.4 how can you even say anything bad about any truck they dont get much worse

[@SPIVEYFARMSIHFORLIFE]

6.0s are good motors and I would rather have a 6.4 than any duramax made after the lbz

[@killjoy0484]

😂🤣😂🤣

[@Rangerdnger]

I honestly don't know how you guys work on the Fords or the Chevys. They are both a complicated nightmare, compared to a cummins.

[@Jdoustou15]

It’s really nice coming from duramax to Cummins cause anyone can work on a Cummins lol.

[@BadGoat92]

I went from a duramax to a cummins for that reason and that reason only lol Id still rather have a gm truck though

[@bwalski1]

If you work on heavy duty old stuff is easy, but all the new stuff half you gotta do in cab. So im a cummins guy, but actually prefer ford's as (just not their diesel unless a 6.7). There's a lot too it idk. And most people can't even change their own oil so that gives some thought

[@skstibi]

That’s funny. I was a full on Chevy guy until I had to do a water pump on my sisters Duramax. Now I own two Cummins rams, one 6.5 diesel Chevy, and one 6.7 Cummins/ NV4500 Chevy lol

[@klikliks_service]

Cummins is overrated

[@garyguyette9739]

Being a motorcycle tech and jumping on the cummins platform was an easy transition. When i look a ford, or Chevy I start sweating. Lol

[@beowulf885]

My lml duramax is daily driven on tune 5 with a Stealth 67 mm turbocharger producing 36lbs of boost no head gasket failure 130k miles on the truck

[@aaronkelley8909]

The pulling the cabin to remove the cylinder heads is why I recently chose Cummins (again).

[@countcuda70]

You don't have to pull the cab to do heads on a Duramax

[@aaronkelley8909]

@@countcuda70 did you even watch the video 😂

[@countcuda70]

@@aaronkelley8909 I have done head gaskets on a Duramax. Didn't take the cab off. Just have to hold the back stud in place with a zip tie while you put the head in

[@jimm2442]

How many miles are on those LML trucks? Thank you!

[@daviddroescher]

I was sadly disappointed when I bought the early 98 (12v p pump). I had already Allison swapped my late 1st gen (91.5). This going into neutral whenever you let off the throttle is bs in mountainous territory, nearly wrecked the1st time 98 coming down a steep grade into a 25mph corner and lost all engine braking causing me to have to overload the service brakes. Allison on same grade towing the 2nd gen (16010lbs) barely even used the service brakes the motor and Trans did all the work. A stock GVWR rating of 42k lbs vs 16k( 1000 vs518) was a selling point. Yes it drives like a clutchless manual ( C-7corvet twin-clutch)but stronger.

[@jimkillen1065]

Yea the second generation brakes are not much to brag about in my option. Even when you add a one ton chev rear wheel cylinders. I installed a g56 in my 95 4x4. I like it for towing, I building a 2001 front axle to install. With 3 gen brakes . I have a hydroboost system all ready in it . Will see if the brakes do better on my old truck

[@daviddroescher]

@Jim Killen same same . Do 17" wheels fit over the big brakes? If yes what backspace? ( I need a spare and 3rd gen steelies have too much backspace. Pinion was out when I bought the 2nd gen 98.1. I got an axle from a local shop that was moving for 100. Score. Calipers were seized so new brake hardware was needed. Got loaded Calipers ( Caliper, pad, and brackets)and rotors from Napa for an 08. It's a little help. Not what I was expecting way less. My79 K-20 got JB5 (2⅝ piston) to JB7 ( 3¼" piston) with stock 11x1.25 rotors, Stoped way better than this dodge... Rear disk con. using JB5 calipers w/stock proportioning valve was perfect match. Could lock up all 4 while towing the 5er at 23000 GCVW(7K×16K ) AND OUT STOP CARS empty, This pissed off a few break checking Karen's.

[@mytmousemalibu]

I love the Dmax but I will agree, pain in the ass to work on.

[@billferris5292]

It's a good thing that GM's comfortable, makes it better when you're waiting for a wrecker.

[@jameshenson4871]

I have an ATS allison swap in my 19 Ram. No defuel issue and not clunky as you state. Mine was a stage 5 with ZERO issues. If you think a 68RFE will last better than an Allison you have lost your mind. Yes the Allison is heavy but I don't worry about it breaking. Mine is a built ATS Allison so that may be the difference.

[@joshuaquilliam2887]

You aren't trying to race either. Allison is a tough transmission hard parts wise. But it's a slow shifting trans.

[@horsetorquesdiesel]

We have done a few swaps now. I personally feel like the customer wasted the money. They shift slow and shifted rough. A good 68 with locked 2-6 shifts is money

[@countcuda70]

​@@horsetorquesdiesel You're out of your mind. You think the Allison shifts rough compared to a 68re! Lol, that's funny. The 68re is terrible. Anyone making good power is swapping to a built 48re. Allison isn't a fast shifting trans. It's heavy and built way better then the 68 or Aisin. Sled pulling trucks keep them but drag trucks swap to a Th400

[@lawrencewicklum3049]

Been a Chevy guy all my life everybody telling me to get a real truck so I did last fall and it's still in the shop with problem after problem I haven't even drove the truck yet thanks dodge all 3 of my GMC's are on the road and making me money yes they have some problem's here and there but 5 months off the road give me a break

[@jdh10475]

Great info I have a 5.9 and a 6.7 powerstroke and love the drivability of the 6.7 with the 6r140.

[@jimkillen1065]

I enjoy watching these videos.. the damage to the surface rear axle being repaired with the speed sleeve or what ever product would be the easiest and cheapest solution..I replaced the end of the axle on a one ton as it was damaged..I would not do that for this however.. my brother installed a rear axle with disc brakes on his 98 quad cab 12 valve 4x4 . He told me it works good so I may try that approach some time with 3 gen brake rotors and caliper adapter

[@logancoley6238]

I do the same work light deisel repair, 6.7 rams are what we mostly see, Seems like after the 5.9 dodge quit trying, and 6.0 constantly cracking pistons or major high pressure oil repairs, I live in california so maybe that has some effect on what i see different. Only seen a couple lly duramaxs with blown head gaskets, Lots of emissions problems on lmls though.

[@Balakay9435]

Hell Yeah Brother 🇺🇸🦅

[@rtz549]

Every corporate GM employee should have to watch this video.

[@adamroos906]

All the big three have their pros and cons but can't deny the Cummins is stupid easy to work on/access most things compared to the V-8s. I got a 3rd gen Cummins solely for the motor, no emissions and ease of workability to do things myself. They're all great trucks and what ever works for you is good with me lol.

[@timmothyshad1137]

Any time I have tuned a duramax they pull very hard and seem to do great. I’ve done about 40 of them. Still like them but I like my cummins.

[@jlrogers1976]

I ran my 2019 6.7 powerstroke at 734whp tapped out stock injectors with a 10mm pump through a stock 6r140. Trans was fine until I threw some injectors in it.

[@jkhill1371]

If you do a dmax do a 17-19 L5p. You would probably get some views on it. 620hp stock air and hp4 and the stock bottom end is good for about 1000. Only problem is it would need to be in “Mexico” for the people giving out fines. I like my technology with the power but I like the old stuff too that’s why I’m here.

[@OG_Performance]

Any opinions on the 6.4 powerstroke that aren’t PiStOnS CrAcK? Realistically I’m looking at doing a build and I can’t see many issues that wouldn’t be fixed with a basic rebuild. I will be putting in oil squirters on the rockers tho.

[@curtisd8206]

Look up Dirty Diesel Customs from kelowna. They have done a ton of 6.4 builds, and have a great article on their website about upgrades that you need to do

[@Jim_Lawrence]

I don't have a 6.4 so take this for what it's worth... They have more problems than just pistons, and parts are among the most expensive. That K16 is an animal, but the fuel system can fail and is expensive to replace. The turbos can be problematic, and they create a ton of backpressure, so if it's performance a T4 swap is the norm I believe. Lifters can let loose to and trash the motor, as can the 6.0. If it's still emissions on, the regen cycles wash the rear cylinders. Not only that, but now tuning may be hard to come by? Just things to research/think about...

[@nativeoutdoors1780]

@@Jim_Lawrence coming from an owner and a buddy of mine owned one years back and we both love our trucks, they are deleted, emissions cause most if not all problems like oil dilution and pistons. The fuel system is fine not a real issue on these trucks, turbos are fine too, now there is 2 of them so statistically speaking there should be 2 times as possible for problems but never heard of habitual issues. Honestly good engines, need maintenance and need to be deleted.

[@nativeoutdoors1780]

@@Jim_Lawrence but then again I recognize the engine isn't for everyone, I've been blessed from God with this truck and I'm very grateful for it, and she's been minty as a work horse

[@grant_6.7_5th_gen]

In my opinion!! Lol cummins 4-life! Great video Josh I'm glad the business is staying busy!

[@michaeljordan2852]

Love my 07 lbz it's been a great truck

[@73cjproject]

I'll keep with my Cummins engines and Dodge trucks myself. Never been a Duramax fan.

[@spacepope-1]

What a pain. A lot of parts to reassemble and connectors to reconnect. It's like they're begging for something just to get missed.

[@David-yy7lb]

What do you do with customer's trucks that has alot of aftermarket accessories like lights, snowplow wiring harness,stereo systems, gauges ,switch panel with wires going everywhere like through the firewall. Do pull the heads with the cab on the truck or refuse the job because of wires going everywhere?

[@horsetorquesdiesel]

Label, cut, then splice and just add straight labor time to the job.

[@Bacongrease00]

I like the CNC Fab stage 1 pump or the Adrenaline pump from diesel site.

[@jamesmarlar696]

How do you do the install on the Speedo sleeve on that axle I’m doing one now

[@qicksilver284b1]

Sorry. It may be more complicated but I would take a duramax over a power stroke anyway. Got 3 of them love a Cummins as well. Owned 2 fords. 7.3 was a pig but she ran ok . 6.0 was a nightmare then after did all the “bullet proofing” was ok....ish. But never ever trusted my ford. To this day I’ll take my 05 duramax on a 4 hr trip pulling a small trailer and will feel worry free. Bunch of buddy’s had fords some still like um but most all got rid of um. Unless your driving a new 6.7 power stroke then not so bad.

[@JimmieABES]

About time someone called Duramaxes out for what they are - overrated. Same with Allisons.

[@tuckman30]

Bite the bullet on that 6.0. pull the motor or transmission, change the the hpop branch tube and go to a 05+ style hpop. Very dependable pump

[@lyndonhamby7432]

Yep. Looks like a nightmare to me too Josh 😂😂

[@eliwillis1]

So I just bought a Ram 5500, sticking a stage 3 colt came and 20 over injectors, it has the aisin 68 in it. Iv heard they suck, looked into doing the ATS Allison conversion for $19000. What would you do I plan to tow a heavy goose neck

[@horsetorquesdiesel]

Keep it stock power and tow whatever you want with the aisin

[@jameshenson4871]

I dod the ATS Allison swap. Best decision I ever made on any vehicle. The kit was very good and exactly as marketed.

[@laneolesen6618]

Josh, what is the National PN for that axle seal sleeve? Got the same issue and didn’t know of a sleeve for that

[@horsetorquesdiesel]

99300 I believe

[@johnbuuu]

Same issue here, too (01 Disc). Thanks for the PN! That's a relief.

[@bradley8242]

from someone that has had a few dmax’s now own a 6.7. The dmax was quick. Very strong. But the Allison trans is trash. And cost a arm and a leg to build. I’ve bought a brand new unit from gm. Blew it within a month. Even with good tuning for towing. Not to mention the small fortune I’ve spend on front end parts.

[@jacksonhenry3584]

What is your opinion on the Aisin transmission in the 3500 RAM?

[@horsetorquesdiesel]

Keep them stock power and they live forever

[@HunterRoenfeldt]

Could you do a video on what differentials and gear ratios you use in the 07 race rig? Or just tell me what you think I’m looking at upgrading mine and am kinda lost, I use the truck for sled pulling, drag racing, and dyno

[@horsetorquesdiesel]

Factory 3.73 and if you scroll down you’ll see the driveline set up

[@HunterRoenfeldt]

@@horsetorquesdiesel I must be dumb because I can’t find it

[@mikebougher3731]

I have pretty good luck with Alliant power parts used them in alot of 6.0s. As far as the Allison trans goes there is a reason they put together a duraflite.

[@HioSSilver1999]

I like the ifs. I don't really see any drawbacks to it.

[@M_CNST]

I just spent a mint building my 68 I hope it's good now lol.

[@adrianmilissa9271]

You can work on anything if you have the proper tools. Especially if you have lifts. As far as you backyard mechanics such as myself I would rather have an older Cummins to work on. I want a ford love the trucks but every time I lift the hood I don’t even want to try. Call me a lazy mechanic if you want but my time is more valuable and I don’t get paid to work on my own truck. But forget all that. Hey Josh are you going to show us the installation of the manual VB and shift lever? I am pretty sure u have an old video form long ago but I can’t find it. If you would so kindly guide me in that direction much appreciated. Adrian

[@baconcreek609]

Love it...... you got wound up on the GM hate. 😂

[@chrisgulack7708]

Hey hey hey my LB7 is just fine!!! I finally got a transmission build on it and head studs. It feels great!! Love watching the videos bud. Keep it going!

[@automatedshenanigans8230]

Yeah those bow tie and blue oval diesels are a no go for me. They shove them way back into the firewall and cram as much bullshit around them that makes them very difficult to work on.

[@dhillanroy6659]

I did heads and studs on a 2018 LML last summer, wasn’t fun. Machinist and good friend said the valve guides were sloppy due to soot being packed in guides (non deleted truck) got new castings from GM bolt on ready for like 2k if I remember right, stock head bolts could have been removed with a 1/4 drive ratchet and were fretting… I suggest merchant automotive for duramax shit. I called the, up and they have a full gasket set alll GM gaskets with ARP head bolts for like $1,200 super cool guys and good products

[@garrettsiegert6100]

It’s a shame the LML engine wasn’t in 2018 trucks

[@countcuda70]

LML is 2011 - 2016. If you have a 2018. It's an L5P (2017 - Current)

[@jakes_lbz]

I do hope you decide to one day do a duramax build because there really isn't a ton of good performance duramax content. I'd really like to know more of the ins and outs especially for the lbz-lmm trucks. I think there's not a lot out there for guys who are looking to make big power with duramaxes as far as information is concerned. I do however think that there's more guys who would prefer building a duramax over a Ford but I just base that off of not seeing a ton of guys build huge horsepower trucks on a powerstroke platform other than Jesse Warren and Charlie keeter but I could be wrong there. Duramax content would be very appreciated

[@joshuaquilliam2887]

Truck master is a badass channel for Duramax stuff. I don't have a dirty but I enjoy watching stuff about them.

[@DatS1ck_LML]

Off topic but watching a diff video made me wonder, what gearing do you run?

[@horsetorquesdiesel]

3.73 in all my trucks

[@DatS1ck_LML]

@@horsetorquesdiesel is there no sense in going to a 410 on diesel or what? Sorry for ignorance just learning.

[@horsetorquesdiesel]

@@DatS1ck_LML there is with larger tires I usually run a 32.8” tall tire which is close to factory so I just stick with 3.73 my pulling tires are also only 33” as well

[@DubsDiesels]

CNCFab makes great early style 6.0 pumps.

[@DynomiteDieselTV]

another great video! 💚

[@jvmopar]

You don't have to pull the radiator support on the Duramax trucks. Saves time not having to deal with the coolers.

[@mitchvankesteren6771]

Those new chevys look like absolute dooooooog shit, in my opinion! The gmcs are badass

[@dustinbieri9786]

You just got a subscriber because you said you didn't like the Allison transmission lol! I've got my own diesel shop and I can't stand the Allison. Give me a 5r110 or 6r140 ford transmission. Give me a 11 6r140 with newer 6 lug converter and that's going to hold most anything on the street.

[@bambikiller2011]

Look for cracked pistons!

[@automatedshenanigans8230]

I’ve broke too many G56’s even modified, went back to NV5600’s

[@blakemaxwell9334]

What power level were the G56’s breaking?

[@beowulf885]

The headgaskets will blow on any type of vehicle with the heat from the egr/ up pipes being so close to the heads get ppe up pipes and delete the egr you will have zero issues with the headgaskets the epa is killing all of these engines

[@MRW21783]

Except you can't find anyone to tune them anymore.

[@oldhorse4171]

Your impressive with your ability to work on this stuff.

[@dsimondublin]

Got to love 5.9!!!

[@livingtheamericandreaminth1872]

If you have ever seen the in side of a Allison you will understand why they have a short HP gap all Allisons are a Direct drive Automatic

[@salthernandez9629]

I’ve learned a lot today

[@markrich3271]

Josh If your every looking for things to talk about on the channel I think you would get allot of interest if you showed the tuning side of things . Just fuel and spark. It would bring more people from all over to here too.

[@Rocksolidbullys]

Maybe you suck as a mechanic!?? Duramax looks scary to work on but once you grow a pair and just do the job, it's very straight forward and fairly easy to work on.

[@horsetorquesdiesel]

😂 we do 3-4 cab offs a month on these piles. I was stating for the average DIY the engine layout is garbage

[@hollisjlee]

josh, your my bloody favorite. you know my commments well enough now to know i love your stuff. but damn do we think a-like. i was laughing so hard through this video. hands down, that ford trans is baller and the platform is way stronger than the dmax. reliability is different. i love the durmax its my favorite diesel for sure, but working on it is not my favorite. fuck the allison and idc who hates on my comment, the allison is damn near garbage, the 68rfe takes better abuse. and the fastest dmax i do believe runs a 4l80e manual valve body. only really good years for dmax was 01-10 and those all have there dumb issues. if you ever got a dmax for content id highly suggest the lbz with the zf6 manual. lil sketchy but still very achievable for many things. 6th in that zf6 will walk away from alot of trucks. but truly josh, this hit the nail on the head for so many things. till next time!

[@chucknSC]

I don’t like Durmax either but I like my Duramaxes.

[@rylanjackson1533]

Definitely don’t disagree with you. My lly has been great since studded, had the transmission go out randomly and put a suncoast stage 3 kit in it with goerend converter shifts good with the tuning done on it but I can’t get over how a cummins shifts. One second my truck will be shifting hard and the next second it’s sloppy on the gear changes.

[@rustinpenner5661]

Sounds like u got a trans issue... Or poor tune... Cummins tend to shift harder cause a Cummins doesn't defuel during shifts is my understanding

[@robbybowermaster6270]

My my my Josh !!!

[@jjthejetplane244]

Im here to fight in the comments

[@0778drz110]

This is why i have gas trucks. If i ran supped up diesels my house wouldnt be paid off right now.

[@Hammbone0712]

I love Duramax and both my LMLs of course deleted cp3 turbo tune trans etc etc Every truck has its pros and cons i guess.

[@marrag1]

In my opinion I would buy a brand new ford instead of a brand new Duramax or Cummins. The newer fords seem to be built much better these days but Chevy and Rams like they look nice and everything but they're built like garbage nowadays.

[@ROELKEY2442]

I like what you said “like what you like”. I love Obs 7.3s. We will never be able to hold a candle to common rail technology. But there is something to be said about how easy they are to work on. Do you guys ever get 7.3s in the shop?

[@Jim_Lawrence]

I think you're right on the Allison. I am planning on swapping a 6 speed behind my 550ish hp 7.3. I want the double overdrive, and nobody makes 6R140 swap parts and controllers. For daily and occasional towing, a mildly built Allison with a good converter I'm hoping is the ticket. No defuel on shifts, because engine and trans won't talk. Or maybe I'm retarded...

[@alanack67]

Defuel on shift is essential for transmission life... do a zf6 instead, totally bulletproof transmission, and nothings cooler than an old stick shift diesel 😎

[@Jim_Lawrence]

@@alanack67 No it isn't. This isn't uncharted territory, and they live fine. That's one of those old wives' tales that you need a defuel to live, at least at the power level I'm at. Now, you do need to upgrade clutches and increase line pressure. Basic performance build and a good billet stator converter is my plan. Those are generally rated to 750 hp. I also have a zf6 truck. The problem with that is the same as the current 4R100. Not enough overdrive. The 4R is .71, ZF6 is .72, but the Allison has a .71 5th gear and a .61 6th gear. For a road trip Excursion, adding another overdrive gear is the reasoning. And the wife can't drive stick. Remember I'm not looking for a competition or dedicated tow rig. It's mostly a daily.

[@horsetorquesdiesel]

6r140 with a PCS would work

[@Jim_Lawrence]

@horsetorquesdiesel someone make an adapter plate? I'll look more into it I guess. Also wonder how good the tuning is, never heard of anyone doing stand alone 6R140. Cummins swap guys?

[@Jim_Lawrence]

@horsetorquesdiesel I have yet to see anything on any controller for a 6R140. Nothing. Not to mention I'd have to machine my own adapter and flexplate to mate it to my 7.3. Closest is US Shift may work on it with their Quick 6 I can use readily available bus/medium duty parts to bolt an Allison up, with an sae 3 bellhousing swap, and there's a few choices for controllers, with any dmax Tuner is able to tune it.

[@o0FAM0US0o]

Great insight

[@rboyett]

Essentially everything in this video has to do with doing stuff with these trucks that they are not designed to do, regardless of the platform. I do have to agree with the ifs not being able to take abuse as well and cp4’s being trash.

[@Cole_H]

Agree with all statements on the duramax, respect them but not for me personally

[@turbodieselgarage]

Start a fight in the comments, that one made me LOL

[@techs1smh13]

Love my DMAX and mike L built trans.its federal emissions standard