4L60e to 4L80e Transmission Swap - What to buy

[@TahoeSteve]

Links to the stuff in this video on Amazon in Description above.

[@benpeters9538]

Just a quick question, not trying to talk down on this setup but wouldn’t it be easer to just have a 4l60e built to hold more power. No hate just wondering.

[@joshvanderwal6718]

Ben Peters no because the 4l60e is junk that’s why everyone swaps them no matter how you build them they always shit out 3rd and 4th

[@carolinawestern3875]

Dealing w/a similar issue. Customer brought in a 07 chevy 1500 4x4 (6.0) 4L70e tranny is shot & can't find one for a decent price. Have access to a complete 2000 chevy 2500 4x4 (6.0) w/a 4L80e. What all can I use from the donor truck?

[@pmotorsports8276]

@@benpeters9538 still won't last as long. By design the 4L60E uses all of the forward clutches twice. So you get 1/2 the life of the 4L80E

[@pmotorsports8276]

@@carolinawestern3875 everything except the rear driveshaft

[@bryanrose20]

Not even 5 minutes in and I figured out the easiest way is to sell the 1500 and buy a 2500 😂😂

[@TahoeSteve]

you might be right

[@classiccam4647]

Apparently u don’t like to get ur hands dirty😜😂

[@forresterpaige7767]

Truth lol it’s not that bad tho

[@kevinh845]

So what my 2500 has a 480?

[@bryanrose20]

Slim Junior 4L80 yes

[@WoahVinnie]

Excited for this! I replaced my 4l60e with a replacement on my avalanche. I did it on my back, no lift only stands. It was scary, never did anything like this work before. Week before christmas last year took 4 days for out, in, running. I became very confident. Good luck and I cant wait to see this completed!

[@STEVEEDG]

I also removed the 4l60e from my avalanche by myself. The trans is messed up cant even remove the components looks like a piece welded itself on the output shaft and its only the stock 5.3 with a 3000 stall that stall was fun the truck would actually spin the tires hard when punching it from a stop I guess its too heavy for the 60e to handle it so im thinking of swapping to a 4l80e with a 3200 stall.

[@karlhubbs3238]

Intelligience is explaining things simply and straight forward. So people understand. That's sincerity. Playing with stupendous words is flashy and useless most of the people egotistical. Thanks for your good work!

[@TahoeSteve]

Thanks so much for the comment, much appreciated. I don't have an stupendous words, lol!

[@growlith6969]

Insightful, thanks for putting this out there. Really weird that the aftermarket hasn't made a whole kit for these vehicles. I did find a 2wd crossmember that just bolts in, but did not see a 4wd version. Seems like it would be a money maker for a performance company to put all of this together.

[@patrickgagne8795]

Oh man..I'm not religious but god bless you brother. I'm looking to swap the trans in my 1991 m998 and gone through countless forum post. Finally narrowed it down to do the 4l80 over the 700r4 but then that opens up a can of worms. Very helpful video. You have a new sub.

[@TahoeSteve]

It means a lot to get comments like this. It makes all the hard work and effort worthwhile, I appreciate you I'm glad I was able to help.

[@lahejmalih4170]

First of all I would like to thank you Tahoe Steve for the hard work on this video , this video is very helpful and made me solve all my problems , Thank you again for the great work

[@TahoeSteve]

Really appreciate your comment. I'm glad to have helped.

[@jaylenmyjj695]

Thanks man I have a 2005 Chevy Silverado with a stage 2 Cam and I want to take my 4L60E out and boat up my 4L80E because all I've been having was trouble a lot of people told me that no matter what I do to the 4L60e i will always have problems with it I put an H2 shift kit in it and a super servo and the red high clutches and I'm still having problem with it slipping on me after a while

[@diversedad7954]

I'm building a 66 C10 SWB and planning a 5.3 LS swap and have been considering doing the 4L80 for it also. This will be a cruiser truck on bags. I plan to keep the 5.3 stock with the possible exception of a mild cam for a little power and sound. It's going to be a nice weekend cruiser but I'm building it to be able to drive everyday if I wanted to and also on occasion pull a small trailer. I'm fairly certain I won't ever see the benefits of converting this truck to 4L80. I think the 4L60 will be just fine for my needs. Then again, this is a full build and I'm gonna have to do custom driveshaft and cooler lines and all that anyway so I'll just have to weigh the costs when I get to that point.

[@donnychevrier4577]

Thank you for all your information helped out quite a bit I don't think my friend's going to want to do all that to her truck

[@TahoeSteve]

Totally worth it if you're pushing the horsepower.

[@bryanroupe8646]

Damn you balled out. I did my swap from market place lol. The only things knew I bought was the transgo kit and had to have shaft shortened. Already had HP tuner. Everything else was used. I know a guy with stock 4l80 and a transgo kit running low 9s in a 3400 car. They are strong even in stock form. I'm going to be putting one behind a sbf when i get the parts together.

[@TahoeSteve]

Best of luck with your build!

[@alshotrodgarage4779]

I like your commitment to doing research before starting the process! Nice video...

[@TahoeSteve]

Thank you!

[@josebrea4115]

Thanks to you & the helpful info, just finished my swap from 4l60 to the 4l80. keep up the good work. Kudos from Anchorage, Alaska

[@TahoeSteve]

Awesome! Thank you!

[@608Ralphy]

How was it? Did you do it yourself? Total price?

[@skylerscott3000]

The transfer case adapter plate wasn’t in the description also thing that stopping me is transfer cause adapter both drives shaft being different cause mine is 4wd everything else seems easy to swap over can you provide a link for the drive shafts and adapter kit

[@FFMotorsports22]

Okay so first question because I’m getting ready to buy all the parts to do this you mentioned 27 spline and 32 spline and swapping out an input shaft ? So are you saying I have to use the 4l60 transfer case and swap out the input shaft or can I not use the 4l80 transfer case ?

[@StanKirkey]

My yukon is super charged. Just did a 4l80e swap. Just waiting for tune

[@Doesntmatteratall]

Very helpful I hope to do this to a early 2000s stock power Tahoe

[@Stuart_Houston]

Do you have to change the shifter in the steering column? Does the cable move the same distance for each gear in each trans?

[@IEraiderfan]

Looks good Steve I am looking forward to the installment thanks for posting.👍👍👍👍

[@Killian665]

This video series on the swap is perfect. I have an 04 Suburban turbo build that’s also 4wd. It’s been kinda hard to find good info on the 4wd swap since most everyone is doing 2wd.

[@TahoeSteve]

So glad to be of help

[@RafikiJones6447]

Instead of reusing a mp3023 Transfercase originally mated to the 4l60(27 spline). You can opt for a NP263HD (NP1) transfer case which came in the 6.0 2500 trucks which are known to be much more stout 👍

[@brandonalexander9562]

Well we know it’s bulletproof. Missed out on an 80 a few months ago. On my 2nd “rebuilt” 60 that just blew up in the suburban...done!

[@TahoeSteve]

Yeah, i blew my 60 twice before switching. Never looked back since and don't cringe every time I stomp on the gas.

[@Cheyo414]

@@TahoeSteve we’re those 60s built? Or stock?

[@TahoeSteve]

1st stock. 2nd built.

[@Cheyo414]

@@TahoeSteve I’m trying to decide on a built 4l60 or 4l80 but I want to know if it matters for 4x4 trucks. Because I have the manual switch not the button switch

[@juliansdiamonds]

YOU MY FRIEND, ARE A FREAKIN GENIUS !!!!!! THANK YOU FOR THIS. I'm hoping to do my 2007 suburban.

[@Kyle-ev4fk]

Did you go thru with the 4l80e swap?

[@juliansdiamonds]

@@Kyle-ev4fk good day. Not yet. In the middle of a 2010 subaru engine swap.

[@Kyle-ev4fk]

@@juliansdiamonds I don't think the Subaru engine is a good swap for Suburban.😂

[@juliansdiamonds]

@@Kyle-ev4fk 😂🤣 you are correct. It's a subaru to subaru engine swap. Although I would do a suburban engine swap to the subaru, that would make it so much more reliable 😂😂🤣

[@normanthompson4729]

What do you charge for a copy of your notes or instructions to do the swap.

[@micahhaislett3792]

Thank you for making this.

[@TahoeSteve]

My pleasure!

[@HeavyChevy32]

Michigan Motorsports tuned my truck. EXCELLENT crew over there

[@HeavyChevy32]

Also, I work for AAM. Guanajuato makes good parts.

[@shawnc1716]

I talked with the place in hudson for transmission asked for same transmission setup. And he gave me a quote for twice what you paid for transmission its like 4,200 so that suxs for me

[@bryanblood7063]

Thank you for the video I've been wanting to put a 4l80e on my 95 k1500 I'm sure itll be different but still I'm further after watching this video. Its was awfully thoughtful because I'm sure its took a while to find all the stuff. You also even said where you ordered everything how much was the 4l80e from the place you bought it from. Also was the specs on the transmission whst it initially came with when they built it or did you get it built with stronger things or was just the 27 spline adapter the only thing cause I'd like to go with the adapter installed.

[@TahoeSteve]

From memory, the 27 spline adapter was the only thing I added. But, I did replace the torque converter that came with it to a really nice one from Circle D.

[@ArkArmy90]

Can i use the same measurements for the driveshaft as you for a 03 silverado extended cab?

[@connectedevolution]

I want to change the transmission and potentially convert a 1500 van to 4x4. Probably not worth it, but if I ever have enough money to cover it I would like to. I might just have to wait and buy a newer 2500 to convert to a 4x4

[@tripled8725]

thanks for video and the resources, i was able to do my swap in 1 week!

[@JIM-dz1es]

Had any issues since?

[@Varela_39]

Thanks for the video man, I’m currently going through doing the 4l60/4l80 swap on my truck . This was 100% helpful

[@TahoeSteve]

So glad to be of help! Keep me posted on your progress!

[@JByrum]

Good video. Are you sure the part number is not 05D-09-07-2A? Because I'm looking at getting the same one.

[@TahoeSteve]

It's been a long time since I did this. Best bet is to call Circle D and make sure you are getting exactly what you want.

[@e.v.a.l.s]

Cool video, awesome project. Can't wait to go through your channel and see how this is coming along or if it's finished. One thing that I don't understand is how can a man who can figure out how to go through all this information and work, not figure out how to get a man's haircut?

[@TahoeSteve]

Covid-19.

[@mattblack133]

Great intel brother!!! 🤙

[@mistym.5443]

Great Video ~ Congratulations and best wishes for your next adventure!

[@TahoeSteve]

thanks for watching!

[@Boostededdy]

Question, for the flex plate I know the ls1’a had a dished one... would that work as well for not needing a spacer?

[@TahoeSteve]

Mine was dished and did not need a spacer. Just make sure you select a torque converter that fits the bolt pattern. Call Circle D. They will lead you down the right path.

[@dannym5106]

Amazing amazing video, I was just wondering if a 310 mm stall will work on my truck. Not sure what the size difference is between the 278 or if it’s different. Thanks in advance

[@TahoeSteve]

So glad you liked the video. The number represents the diameter in mm. Call Circle D, they are very helpful and will recommend what's best for your application.

[@angelbernes7585]

Very useful information. Thanks for sharing

[@TahoeSteve]

Glad it was helpful!

[@jsavage9134]

Can you also just swap to the 4L80E Transfercase instead of using an adapter plate to use the transfer case to re use a 4L60E or what would be the hold up From just going with the Transfercase to match the 4L80E?

[@Hitman-ds1ei]

Did you investigate the cost difference between 4L80E and upgrading 4l60e with all the Sonnax parts

[@TahoeSteve]

I spent half to rebuild my 4L60 and blew it up, TWICE! Now i can hit the gas and never cringe about leaving a transmission on the highway. Cant put a price on peace of mind.

[@АндрейЭлектрик]

Grate information. I'm doing swap on 2003 Escalade. Donor -2003 Silverado 1500HD and NP149. Everything are installed except rear driveshaft. I learned from forums that trany + adapter + T-case are 30mm (1-3/16") longer then original setup. Can you post how much you cut from rear driveshaft? You mentioned about 1-11/16". I need cross-references before ordering rear driveshaft. Please.

[@speedbuggy7240]

Tahoe Steve great vid. I really appreciate you taking the time to make the vids on the 4L80e swap.. Did your tahoe come with the 4L60e or did you put it in? If you installed the 60, how did that go? I have a 69 chevy heavy 1/2 ton 4x4 that I want to put a 4L80e into, but I already have a 4L60e with less than 20k miles on it and rite now it would be cheaper. And I have a LS 6.0 as well. I want to put them both into my 69 with my original transfer case, unless I can get an used 80e before hand. I'm not sure what the transfer case is, but I'm pretty sure it's a gear to gear transfer case. Do you have any advice or recommend any vid that could help me?

[@TahoeSteve]

Mine came with a 4L60e. Blew it up the first time and reinstalled it will all the upgrade goodies. Blew it again and said enough! 4L80e is amazing and I don't have to cringe every time I stomp on the gas.

[@dallasdelano8235]

I have a 1998 silverado with a 4l60e (3-4 clutch pack worn out). I found a cheep 2001 4l80e on Facebook, and I don't know if I should rebuild my 60e or install a 80e.

[@lawrencechaplin6983]

Same here

[@kevinh845]

I’m thinking too. Seems like a process.

[@TahoeSteve]

Guys, no lie - it's a PITA (pain in the ass). BUT - it is SOOOOOO worth not having to worry every time you want to pull something,or simply just stomp on it.

[@1fastbuggy502]

Great video Steve . If I cut the cross member to relocate for the trans mount . How far do I need to move it from the original location backward ?

[@kristymoore4522]

Did you ever get this answer

[@1fastbuggy502]

@@kristymoore4522 No. When I installed my cross member .I just cut the front transfer case mount bracket off. New location for mount was directly on the cross member it self .I just had to make excess holes on the bottom of cross member so that I could get at bolt heads for the mount/

[@1fastbuggy502]

@@kristymoore4522 Also I used the plug and play wiring harness adapter from PCM of NC Part# P-120021

[@orlandovasquez4639]

Do you have a link to the 80e spacer? I have a 5.3 I’m wanting to mount to it but I can’t figure out what part number I need for the spacer and bolts, motor is out of a 2005 Silverado and 4l80e is from a 2002, all the ones I find it shows for older model 4l80, any help would be appreciated thank you

[@Pitman556]

Is the transfer case the same? On the 99-06 Silverados?

[@menac3daloc381]

Doing a LS swap on my 99 Chevy Tahoe 4x4 gonna put a 5.3 with a 4L80

[@ortsd]

Thats an awesome video! thank you so much for puting all the puzzel parts together. blown my 4L60E for the 3rd time, on my 94 sonoma and looking for the same swap. info is hard to collect. thanks again!

[@TahoeSteve]

Glad it helped!

[@nathanpearce7169]

Perhaps I missed it but how did you adapt to the old transfer case

[@kennethjones7239]

Lots of good, useful information. Thanks.

[@TahoeSteve]

Glad it was helpful!

[@markrawlinsjr6118]

Where does the second speed sensor on the tranny get wired into if u buy the harness adapter

[@justinpittman8143]

Great video. I just don't see anything on where you got the front drive shaft from?

[@TahoeSteve]

I don't think I mentioned it. I just gave the part number so you can get it wherever you want to.

[@thebigbadraider2828]

The information in these videos will it help my swap my 99 suburban or are the trucks to much different

[@TahoeSteve]

I'm not sure, hopefully someone will chime in......

[@BigMike-dm4oy]

Great Video Steve, I also am getting ready to do the swap in my 03 Avalanche. Great info thanks for sharing!

[@TahoeSteve]

Thank you so much for watching!

[@wereexpertstoo3795]

I'm about to do this - very helpful.

[@TahoeSteve]

Thanks for watching!

[@jasonloera3358]

I just went through my 3rd built 4l60e. Pulled the trigger and bought a 4l80 yesterday. Hopefully this will last me. It wasn’t the builder’s fault, ever since I lowered my truck the driveshaft has been putting a lot of pressure on my trans, any ideas?

[@gabes9998]

custom two piece driveshaft

[@jasonloera3358]

@@gabes9998 I went with @driveshaftpros on Instagram, they know what they’re doing He said this 4’ billet driveshaft is better than 2 piece driveshafts, which they also sell

[@gabes9998]

@@jasonloera3358 if you happen to remember could you let me know how that works out I'm looking at doing this in the next few months

[@jasonloera3358]

@@gabes9998 will do, reply to my comment in a month. Should be running and fixed by then

[@AlexTurbo]

@@jasonloera3358 hows it holding up?

[@reece8355]

Man thanks so much u helped me a lot

[@philipdangerfield743]

How did get your speedometer to work. I did a ls swap on a 94 Chevy truck and I can't figure out how to get the speed signal to my instrument cluster.

[@johnsonjeremiah74]

Good info on the flywheel. I was curiois about all that. Good stuff 👍👍👍

[@TahoeSteve]

Glad you liked it!

[@Jeremia1.5]

Can't you just use the same bolts for the flywheel you have listed we can get on Amazon? The bolts that comes off the the original 4l60e flywheel?

[@TahoeSteve]

Are you using a dished flywheel with the 3 bolt pattern TC?

[@karlhubbs3238]

Hey Steve have an AWD original tranny 4l65E I'd like to do this swap but have AWD not 4x4. Also towing a lot that's why I like this. You said won't hit race track. Well I'm in toronto and limit is 100km is limit but everyone goes 120 and if you don't keep up horns start popping if you hear me. How slow to say is it. I mean acceleration not that big of a deal top speed wondering though?

[@TahoeSteve]

I have had no issues with top speed. The thing is perfectly happy at 90 mph (144km) so unless I misunderstood your question, there should be no issues.

[@johnfranks7383]

Tahoe Steve hey, I was wondering what is the part number for the new trans harness from Michigan motors?

[@jojoglemond]

Nice presentation

[@TahoeSteve]

Thanks a lot

[@MichaelGedies]

This is great, looking forward to part 2

[@TahoeSteve]

Thanks for watching!

[@hitmanshadowrecon9017]

I have a 2000 suburban which I'm going to do a 6.0 and 4l80 swap. I already have the motor, tranny, and transfer case. Any advice?

[@darkshadow5730]

Did you get yours done? I went to put in transfer case and its a tight fit between transmission and torsion bar cross member

[@hitmanshadowrecon9017]

@@darkshadow5730 Yea, I had to remove the top 2 studs to slide the transfercase in. I replaced them with bolts.

[@darkshadow5730]

@@hitmanshadowrecon9017 im refering to the crossmember holding the torsion bars in the transmission support cross member is out

[@hitmanshadowrecon9017]

@@darkshadow5730 That's exactly what I'm talking about. My transfer case wouldn't fit because it would either hit the torsion bar crossmember or get stuck on the studs coming out from the top of transmission. So I removed those studs from the top of tranny, then I stuck the rear of the transfer case up above the crossmember as far as possible. That allows just enough clearance so when you raise the front of the transfer case you can now put it on the remaining studs. Replace the studs you removed with bolts of the same size. I hope that helps.

[@maadracingvideo74]

Very put together video, thanks for sharing your studies my friend 👍🏻

[@diggindiggenit6540]

Man I don't know what route to go, I bought the 4x4 tahoo 2000 5.3 a month later the 4L60 blew, got another one in and just today spent 2.6k on total suspension replacements and the tech drove it afterwards to check his work and told me my trans is bad, like it could go at any time. So that's Two 4L60's bad! What the heck man I just want to be able to tow, maybe get some firewood or manure But I am having the worse luck with the dang 4L60 the trans problems are a real issue, another problem is two of your amazon links the item isn't available, so it is like dang, want to make a change but are parts still around to do it? cool video.

[@TahoeSteve]

which parts, I can update the links.

[@diggindiggenit6540]

@@TahoeSteve Transmission Dipstick, GM 15765623 COVER,TRANS CONV ,HP Tuners M02-008-02 , looks like just these three

[@diggindiggenit6540]

@@TahoeSteve Last week blew the rebuilt 4L60 trans that is 3 transmissions in less than two years and this one I had a huge transmission cooler installed but I think I figured out part of the problem it's the engine, when I am towing it consistently revs up to keep speed on any uphill, like not enough power so that automatically heats up the trans more and I am sure that's what did this last one in. Have you ever thought about upgrading the engine to a 6.0 or 6.2 ?

[@TahoeSteve]

All the time!

[@SableCraft]

Did my comment not go through? I was curious if my 2006 GTO would mate to the 80e with the adapter you suggested in the link.

[@anthonycollura9790]

I'm the same person as above comment. My tranny parts are in the link i'm going to post, and the crossmember and flexplate are already installed but I wasn't sure how to get the computer to control the 80e so i was looking for an adapter. Great video by the way. Any advice would be great. www.ls1gto.com/threads/my-gto-build.845239/#post-21666021

[@TahoeSteve]

I honestly have no idea try calling the transmission place and they will be able to give you a definitive correct answer

[@SableCraft]

Tahoe Steve Yikes. I called them and they sent me to another company to ask. And then those people told me they have nothing for the 60e to 80e.. so it was just an incredibly useless experience and that’s why I’m here lol

[@TahoeSteve]

OK, let's backup, what engine do you have on your GTO?

[@SableCraft]

Tahoe Steve it is an LS based 427 dart SHP block.

[@lgbfjb48]

"Look at this photograph. Everytime I do, it makes me laugh.."

[@RzrRippin]

Was that 1 11/16s the correct amount to shorten the rear driveshaft?

[@TahoeSteve]

it did work for me. over a year and no problems.

[@adammancilla4774]

What do I need to make 4 x 4 transmission to 2 Wheel Drive Already removed the transfer case

[@lawrencemeehan2097]

A 2wd transmission and driveshaft.

[@redneckgames151]

Unfortunately not possible, best to find someone that wants to trade a 2wd for a 4wd trans.

[@qtvv7458]

@TahoeSteve what’s the length of your rear drive shaft ?

[@JOSERODRIGUEZ13-b8e]

I have a question would a 4l80e last longer than a 4l60e and will it take more abuse

[@TahoeSteve]

Yes and Yes.

[@jhunpascual1989]

@@TahoeSteve is 4l80e has better torque than 4l60?

[@brandonfarmer7446]

What is the cost of doing the sway I'm on the the fence about doing it on mine vs having mine beefed up

[@TahoeSteve]

www.summitracing.com/search/part-type/transmission-crossmembers/transmission-type/4l80e

[@kevinh845]

Dude awesome. Thank you.

[@TahoeSteve]

Glad to help!

[@jjones7915]

Wat about the early 2000 silverado wit staggered crossmember how are people solving this problem other then do some fabricating,is there a crossmember made for these trucks yet

[@bryancummins5989]

yes their is can find super cheap ones on ebay.

[@ethanolchandlier5942]

Hey Tahoe, I am having crazy proble.s with a fresh rebuild 4l60e no miles on it. Wont start off in 1st wont manual shift to first, floats on 2nd. Replaced and adjusted neutral switch, swapped solenoids, cleaned shuttles and valve etc. Nothing working.

[@TahoeSteve]

I had a shop do mine, the only thing I did was pull it and put it back. Auto Transmissions still remain a complete mystery to me.

[@makeonenine]

Will a 4l60e out of a 2007 Yukon xl 4x4 work in a 2003 Chevy Tahoe z71 4x4?

[@TahoeSteve]

not sure. hopefully, someone will chime in.

[@dalebills9470]

Yes it will

[@alejandrorosas50]

Hey man I’m doing the 4L65 to 4l80 But I wanna keep the flex plate that the 4l65 has which bolt patter do I need to order on my torque converter the 3x10.75 or the 3x11.066?

[@jamest.5001]

Thanks, It was everything I needed to know!

[@TahoeSteve]

So glad to help

[@irarobinson7712]

Are the measurements right on the driveshaft length?

[@davidrendon2030]

Is the (20ft braided oil lines) for the replacement for cooling lines?

[@TahoeSteve]

yes

[@Huckyuu]

I’m interested in either a 4L80e swap or a 6L60e swap, have you done any research into a 6L60 swap I couldn’t find much other than people looking for info same as me, mainly want a 6 speed for the fuel mileage and long uphills

[@TahoeSteve]

I'm sorry, I did no research on the 6L60e. Perhaps someone else can chime in .

[@connorsmith1224]

Grate video told me everything i needed to know

[@TahoeSteve]

Glad to help

[@matadaniel]

what do you recommend for a 6.2 L92 full bolt on pushing 450hp?

[@alfredohernandez4035]

4l80 Fs

[@matadaniel]

@@alfredohernandez4035 my tranny just went out today😭 thinking about putting in a built 4L80, is the conversation hard. how much did it cost you?

[@everydaycar3518]

My 97 gmc if for right in everything hooked up but the 4x4 won’t kick in

[@geneuriarte5462]

Thanks for the video man!

[@TahoeSteve]

Thanks for watching!

[@RedneckMudder88]

What would ya do about an 98 gmc 4l80e swap for that year. I need better pulling power.

[@shawnc1716]

I'm glad I seen this been wanting to for a wile and I work in hudson FL so that's a awesome deal that's were il get transmission I have a supercharger coming in mail bow so need soon

[@markb4448]

Wanting to do the same right now on my Avalanche I cannot keep the 4L60E going even beefed up build it just popped the trans pump Im running big 38.5X15.5X18 Toyo Open country tires with 12" wide wheels so thats a bit heavy. Maybe I need the Stage 2 4L80?

[@ELITEFLEET554]

I know it's super late but s stock 4l80 can handle that no problem maybe just a hd2 kit

[@itzjusnick]

Tahoe Steve. I have just completed my swap. But I'm running into what I believe is some tuning issues. I'm getting 2 codes after po745 and po840 I believe. Can you provide any info on what you did for the tune?

[@TahoeSteve]

Yes, check this out: 4L60e to 4L80e Segment Swap HPTuners - kzbin.info/www/bejne/pXy2mXhqp9Wmd5I

[@pmotorsports8276]

You paid extra for a custom converter to match your flexplate, then replaced the flexplate anyway?

[@TahoeSteve]

I did not mind paying extra for a bullet proof converter from a quality manufacturer. The upgrade was the billet front end, the matching bolt pattern was a bonus. The holes in my old flexplate were oblong and the flexplate slipped a little in the holes, so yes, i got a new one.

[@joshtribble9612]

Can you get me a part number for the hardened 27 spline output shaft you had put into your 4l80e build?

[@TahoeSteve]

I'm not sure, this is something Transmission Depot did for me. Give them a call, they are super helpful.

[@joshtribble9612]

@@TahoeSteve you said inthe video they gave you option for 27 spline transmission output shaft. So you wouldnt have to change out your transfercase input shaft.

[@joshtribble9612]

8 minute mark is where you mentioned it

[@eliforbes4842]

Making me rethink an 80e swap...

[@Nealy165]

Do you know the length of your driveshaft now?

[@alexsoto6269]

Did you change your differential or kept it stock?

[@TahoeSteve]

Kept it stock.

[@goosedilla79]

Do you notice a big difference on first gear with the 3.73?

[@TahoeSteve]

@@goosedilla79 yes, you definitely notice it. Probably the only drawback of the swap, but I still think the peace of mind knowing that I'm not gonna blow it up makes it totally worth it. Especially when I add the turbo.

[@goosedilla79]

@@TahoeSteve thanks for that input! peace of mind is everything! Keep up the great content. Your video of your 4L80E swap is by far the most detailed around and I definitely appreciate you taking the time to put this information out! Are you happy with the stall speed that you went with?

[@fmrperformance7774]

My 4l60e shift cable was longer than the 4l80e.

[@jammy46235]

Is there any difference in flex plates or are they universal thanks

[@timwainz]

4l80e has a 6 bolt flex plate. 4l60e has a 3 bolt.

[@1fastbuggy502]

Hello Steve. In the middle of doing my H2 conversion. Was that the correct transfer case adapter ? #15724745

[@TahoeSteve]

Yes, that's the one!

[@danolfert1349]

Very good info thank you

[@TahoeSteve]

Very welcome