GIVING UP on my 4l60 before it LEAVES ME STRANDED

[@ThanenJ]

Glad to see you getting some sponsors. Nice work LT.

[@assaultlick2169]

Was just gonna say this

[@johnnyls1t56]

Hey man I love the content! You actually inspired me on my latest build. I got a 05 6.0 lq9 swapped RCSB 4WD and converted it into AWD with the help of your videos a couple months ago. It's a blast and launches hard! My next things will also be a 4l80e conversion as well as an LSA. Your videos will be a giant help!

[@GoodForYou4504]

It is the right choice to go with the 4l80 with that supercharger. That is great info on the parts needed. I've done the transmission upgrade on a procharged 5.3 2wd 2004 Seirra. I got help with parts, but the wiring and tune were the issue. Worked out well eventually, and I've had a ton of "fun" with the truck as a daily driver for years. Honestly can't believe the transmission held up for over 100k but that is how good it is. Thanks LT!!

[@danielito4055]

I too bought a crossmember from Tyler. He lives about 25 minutes from me and was nice enough to drop it off at my shop. Truly the best transmission crossmember maker! And super lightweight!

[@joez6222]

The front drive shaft from a 02-10 duramax or 8.1/Alison truck will work for your swap. Part number 15182094. The length was perfect on my 4l80e swap, and it's smaller diameter gives you the shifter cable/linkage clearance you need with the wider 80e trans.

[@LawrenceTolman]

thanks for the info, that is helpful!

[@jshug1103]

It would be awesome if in the end you had a build parts list for this. This thing is going to be bad ass!

[@jberkhimer]

I've got one of Tyler's crossmembers when the time comes to go 80e. Solid piece. Pretty much the go-to part for this swap.

[@QuezlySnipes]

My man!!! Finally getting some sponsors!!! Hard work 💪🏿paying off!! Congratulations!! 👏🏿 you deserve it!!

[@LawrenceTolman]

Appreciated! It helps a ton running a channel!

[@VATION3RD-GEN-X-GARAGE]

Precision Transmission in Amarillo Texas and the help of Sonnax and all their great parts can build a mule a 💪4L60/ 4L60E💪

[@RHYNOMAN12]

I’ve been considering going to AWD and after all you’ve done you’ve made the decision easy and clear. Thank you LT!!

[@YLegalRacing]

Just got done putting a few hundred miles on my 4L80E swap on my 2 door Tahoe. 4X4 was a little bit of a challenge but it was a good learning experience. And we got a 411 swap. I got the lexTech idea from watching your vids 👍🏼

[@davemcdaniel4856]

Good call. The 4l60/65 is a grenade with the pin pulled and a Parkinson patient holding the spoon.

[@nathanpearce7169]

The problem with the earlier model 4l80s was that the oil passages delivered cool fluid the front of the tranny and not the mid band areas that caused a lot of burn ups and heat was the #1 killer. With as much HP as you have and the high stall torque converter that 4l80 will 100% burn up. Unless you come up with some serious cooling systems. You should get another heat exchanger and mount it parallel to the ground under the truck behind the transfer case with a shroud to scoop air up to it. Stay away from those in line heat syncs they don't actually do much at all. I promise you you should swap it out with a 2002 and on for cooling capabilities and probably still add the second heat exchanger. And you will need better clutches bands and servos for that much HP. It will blow.

[@brandoninks]

Glad too see a good install ive been looking to swap a 80e in my 4wd silverado in replace of my 60e ive been through 4 of them and im sick of dealing with them from stock too built they never last

[@LawrenceTolman]

This is exactly why I skipped right to the 80e. There are probably a handful of shops that can make a 60e hold up, but tons of people like yourself have had bad luck with built 60e letting them down.

[@MJ-MJ-19]

@@LawrenceTolman where can i buy the dust cover?

[@sfv41901]

LT, don’t worry bout the vids. U do u & we’ll all still be gear ready to watch the next vid. Just keep a time lapse during all the work & make voice over vis from that when u can 👍

[@SyTySpeedShop]

I have a T56 I built to do AWD using the NV149, I have an NP120 as well but not many have done the 32 spline input for them unfortunately. I am now taking an 05-19 Nissan Frontier VQ40DE 6 speed manual trans and going to mate it with the NP120 to go into my 98 Bravada with a twin turbo 4.3.

[@kevinthouvenell1750]

Who is making your adapter plate for your transmission

[@ne2i]

Good choice it costs alot to make the 4L60 survive Put some links to some of the parts you described. Thanks!

[@bluecollarhotrods9781]

I have one of Tyler's swap crossmembers in my 2001 2WD RCSB Silverado, it truly is the BEST design out there. He also makes a lightweight, tubular crossmember that goes under the oil pan. (I have one of those as well.) From what I have read - a 2500HD front driveshaft should be a direct bolt in. I really want a RCSB 4WD truck, but the planets never seem to align... I either find one when all of my money is tied up, or can't find one that isn't completely roached out to save my life.

[@krnwhitlow]

Way to go LT glad to see you doing well.. all the work you do is great content and it shows in your life and the projects you produce ..great going

[@LawrenceTolman]

I appreciate that!

[@ryurc3033]

This is awesome information. Ive been building something much less intense. Stockish 5.3, 4l60, awd Astro van case, 2000 bravada front end welded to a 72 chevelle. The goal is syclone sort of drivetrain in a 70s wrapper. Its slow going raising my 10 year old at the same time, but ive gathered all the parts. Just gotta turn the pile into something

[@LawrenceTolman]

hey that's a cool combo to put in a chevelle, I think thats awesome.

[@warrioryfm350x]

I 4l80 swapped my 06 1500 ccsb and I used a trailblazer front driveshaft from a l6 it was a longer shaft and my local shop shortened it for me for like $75 and the rear you can have your stock one shortened and don't forget to swap two wires in your trans plug harness and don't waste the money on a adapter herness I did and mine came pinned wrong and I ended up removing it and repinning the stock harness I also modifiedy stock x member which was stupid easy I removed the spacer pad from atop the x member and moved it back and guseted it and works great and I got the 32 spline input shaft for my t case I have plenty of pics of the work I did as well

[@EricErnst]

I've looked at the Bespoke Post thing in the past. I did not want any of the trendy or hip items. I took their quiz. I have no use for any if their items. If I want something, I'll buy it myself and not worry about a random "gift". If I had any interest in any of the lifters items, I'd probably subscribe to it.

[@adampinczesgarageandfabric9930]

some of the escalades did have a torsen center diff. we tore one down when I used to work at a GM dealership. we tore it down to see if it was worth repairing and I was surprised to find it had a torsen but I don't remember what year it was all I know is it was pre 2015 cause that was when we tore it down.

[@Throttle-Therapy]

Good choice on the cast iron tail housing extension. I have broken one when the front U-joint failed on the rear driveshaft.

[@LawrenceTolman]

yeah, just looking at the aluminum one didn't give me any confidence with its strength

[@atvrepairsandmore2482]

I might have missed it but what stall converter did you use in this truck? I put a reman 4l60e in my truck about a year ago but I know it’s only a matter of time before it goes out again. When it does I’m going to do the 80 swap because I plan to do a single turbo kit at some point but don’t want to grenade my 60e that’s in it right now. My truck is a 03’ 4.8 reg cab long bed. I need the long bed but short bed is the way to go if you can find a clean one like yours that’s not ragged out. You should do a similar 4.8 build but with a turbo. I’d like to see the difference if there is much. I know you have the 8.1 truck but 4.8 is a lot more common for people. I’m a Ford guy but the GMT800 platform is one of the best trucks ever made in my opinion. I never understood why people liked them until I got mine. Bought it with 97k miles on it for $3500 in 2019. Only a few small door dings. Just hit 151k.

[@LawrenceTolman]

for the 4l80, i bought a Circle D 265mm triple disc in a 3,400 stall speed

[@danielmays2926]

Big things coming! Great info well done LT!

[@mvlaubach]

I've not seen the non-aluminum extension housing first hand, but that one looks like its about a 1/2" taller (as it sits on the table - really it's just "longer" in situ) than the aluminum one! If so, that might help you - I had to cut 5/8" off of the 4L80 output shaft when I did the 4L80 conversion in my SS. The 4L60 output shaft is flush with the end of the extension housing, whereas every 4x4 4L80 I've seen sticks out that 5/8" from the extension housing. that stick out prevents the transfer case from bolting up. Looking for to see how you deal with that! Love the content, LT!

[@LawrenceTolman]

I did mock it up and notice that the 80e output shaft sticks out longer like you mentioned, which is why I bought the 2nd extension housing thinking there were two different lengths. Both actually measure within about 0.010" from one another, so my plan was to just trim the output shaft. The only three output shafts I could find for an 80e are the 2wd, 4wd, and the P30 chassis one for the parking brake drum, but I bet the later model 4wd 80e must use a slightly shorter output than early

[@dansherwood9851]

Wise move. I had an 01 gmc C3 with a 6.0 and a single turbo runnin low 12's. Hughes trans in Phx built it 3 different times and it wouldn't stay together. They're just not built for the kind of power you're turning.

[@hugieflhr03]

The SIlverado SS forum had a guy selling a coupler to bolt it 4l80 in place of the 4l65 .

[@208Concepts]

On some AWD GMs like the 1500 SS, you can undo the driveline from the transfer case and dyno in 2WD, as long as you hook it back up before you drive it on pavement.

[@LawrenceTolman]

Yeah, I know you “can” but that’s a good way to burn up the viscous coupler inside

[@TheMrwhite182]

Wish I knew you were looking. I have a 4l85 hanging off the back of a lmm i bought that I have no use for. I would have let it go for mega cheap

[@edgarmolina5047]

This is awesome great info! I just bought a 4wd frame already have the 4l80e just need the awd transfer case, how do I order the 32 spline input shaft and what’s the price on them? Would the input shaft on my existing transfer case on my 4l80e work on the 149 transfer case? 🤔

[@allenmessmer2508]

I just ordered the power stop brake kit for towing rotors calipers and pads and it was just under $900 and now it's going up to almost $1,200 on Amazon in like 4 days so I saved about $300 just in the nick of time

[@joecameron3406]

I gotta a foundation 04 zr2 blazer. The transfer case rebuild is what I am waiting for next. I keep learning more every video.

[@allenmessmer2508]

If you want to move back over more to the Pacific Northwest I've over in Olympia but I lived in Idaho for a while too and I really liked it there it was really nice I heard your story about how you started and where you did for work and stuff good on you brother I hope I get to meet you in person someday I'm thinking about doing road trip so maybe we can catch up one of these days keep up the great work

[@rubezahlmountainworks7974]

Hold the firesteel down to what you want to ignite. Then rapidly scratch and draw back the back half of the mora to shower the sparks.

[@pbrexs]

Thanks for your channel. I emailed GTR that you used to build your cross member for the 4l80 trans. He said he don't do that anymore. Bummer.

[@anomamos9095]

You can buy Torsten upgrade kits for open diffs so there’s probably one for a transfer case.

[@Todd_S]

It's awesome to see this build come together. I'm excited to see it run.

[@chady6126]

Love the content and glad to see your getting sponsors, I don't have any idea how sponsorships work but 3+ minutes of sponsors info isn't easy to watch. Food for thought, good luck finishing the race to LS fest lot of work in a little time.

[@teaguegearhart9851]

Great episode. This thing is going to fly.

[@t.l.robinson2162]

I truly believe that you will be ready for LS Fest.

[@sean5comet]

My np149 transfercase adapter just got machined for the 4L80E and is on its way back through the mail now.

[@turboboy-oq6xe]

Who modified it?

[@craigmyers5569]

Thanks for walking through each step and parts needed for the conversation. Keep up the great work.

[@LawrenceTolman]

Glad it was helpful!

[@ventura455]

So much great info you provide. You're a natural teacher.

[@LawrenceTolman]

Thank you! 😊

[@dalesmth1]

Hey LT, Slowly gaining ground on my $500 05 4WD to AWD swap. The 4L80 is next on the list before reinstalling the rest of the drive train. I was lucky with the rear diff, and got the G80 code locker.

[@kennygarner1225]

A bit of advice about the g80. They're more prone to failure than the 4l60e...i ditched mine for an Auburn lsd and haven't had an issue in 4 years. The g80 is just waiting to let go

[@dalesmth1]

@@kennygarner1225 The way I drive, I doubt it’ll ever see enough abuse to cause me any issues.

[@jonathonkrkptrk1010]

So what about the torque converter? I have an LS swapped 1999 2 door Tahoe, and I used the old 4l60e that was behind the 5.7 vortec, and I had to use a crank spacer. Since you are using an older style 80e, do you have to run a spacer to put it behind an LS motor? Or is it just a custom built converter that mates the LS to the older 80e? I plan on doing the 80e swap very soon, and I was thinking about using the older style since it’s so much cheaper. But I don’t want to use the crank spacer any more. I just don’t like having that in there. But the LS has a shorter crank then the big block or 5.7 that the older 80e come behind from the factory. Just wondering what you are doing to fix that.

[@LawrenceTolman]

You’ll need the spacer setup regardless of what year 80e it came from. The Circle D converter I’ve ordered had a longer converter pilot and I’m using their flexplate so no spacers required

[@pinydaily5206]

i know this video is 2 years old but i’m wondering how necessary the intercooler reservoir is

[@Haze8923]

Can’t wait to see all these videos of this truck!!

[@TheSilverelex]

Duuuuuuuuude....out of all your builds im extremely interested to see where this one goes. Keep up the good work 👏 👍

[@LawrenceTolman]

Appreciated!

[@E.T.GARAGE]

Just blew my 4L60/700r4 trans today in my 90 vette, 2nd time in 2 years.

[@seabasschukwu6988]

damn man

[@dillanhamilton]

I wish I knew on transmission. I have a 98 7.4 truck I’m parting out. But I’m in KY

[@kennydickerson3494]

What's the hours you have in the stepside truck

[@pbrexs]

When you changed the trans from the 4l60 to the 4l80 would the convertor from the 4l60 bolt up or is there a difference between the 2 convertors ?

[@LawrenceTolman]

The converters are different

[@drewshreve8282]

I r&r'd a 80e in a buddies truck a few years ago and that aluminum tcase adapter was broke

[@LawrenceTolman]

Makes me glad I’ve got an iron one!

[@MultiChevelle396]

That 4l60e you have actually should be have upgraded internals which makes it a 4l65e

[@westcoast6162]

Lt just never left the show that he used to work on.

[@codymurray9305]

Hey I have a 07 avalanche with a 4l60 I want to upgrade to a 4l80 what year would make the easiest switch

[@adriantr3288]

What torque converter or flex plate are you using as the ls has different flywheel to block distance compared to sbc?

[@LawrenceTolman]

The spacing of a 4l80 is the same regardless of early or late design. I should’ve mentioned this, but the circle d converter I ordered has the correct converter pilot to attach an 80e to an LS with no extra spacer

[@TBGaels32]

I think you should ditch the 4L80e altogether and go with a 5 speed. But I understand why you want an automatic.

[@shadowopsairman1583]

The 4L60 when built up would have not left you strandrd. At this rate you might as well find a 6L90 and have Precision Transmission overhaul it.

[@ValarAmstaffs]

Making great progress LT!! Keep up the great work!!

[@allenmessmer2508]

I went through the same thing you're going through and were idiots if we don't just put in a 4l80 my brother did a 4l60 but he's got like a one of the last year gto's and they're tight for a for a lady we got trucks with all the room we need we have no excuse not to put in a for a lady cuz I can't put on my twin turbos until I do cuz I know I will kill this 4l60 keep rocking brother

[@VATION3RD-GEN-X-GARAGE]

#RITD #RacingInTheDirthas a true 100% all-wheel-drive chain driven transfer case in this small and doesn't take up a lot of space

[@igyracer2006]

What’s the website for the upgrade for the transfer case I can’t find it

[@Ttbestas12]

@igyracer2006 looks like its some junk yard shop to me, i was looking for adapter as well

[@igyracer2006]

@@Ttbestas12 I found another place that actually makes a brand new part off of murder nova’s KZbin channel think it was called Mark Williams industries you’ll have to call them though

[@LawrenceTolman]

Its called Modern Muscle Salvage, call em up and ask for Tim. I don't think they sell em on a website, but I bought one there a few years back for the Red AWD OBS chevy we built

[@robertburton295]

You every try 4l70 ? I've had good luck with the 4l65 and the 4l70

[@donaldwatson6342]

For the 120 add the Isuzu Ascender to that list.

[@petersimpson1734]

Hey LT, any chance of a test rip before swapping the tranny and Tcase?....... Would love to see that. While I think it would be kinda cool to see a built 4L60 holding up to some big power, you're correct the wise choice is the 4L80e :).

[@LawrenceTolman]

Actually yes, I’m gonna tune and dyno it with the 60e and current transfer case so we’ll be able to do some burnies and see exactly how much power a stock 60 can take before it goes PNNNNNN

[@james10739]

Good call it was not going to last

[@bluecollarfox916]

If my calculations are correct you’ll need to make about 12.5psi of boost to make 500 whp based on your NA numbers. How much boost are you expecting?

[@LawrenceTolman]

Not sure with this pulley combo to be honest, I’ve heard estimates anywhere from 10-15 psi

[@bluecollarfox916]

@@LawrenceTolman that’s a big window. See what it does and go from there! That’s gunna be a sweet little truck. Some day I’ll do a truck but for now the budget is allowing me to build my turbo nova so I’m happy ha.

[@mancavemotorsports]

Nah this is too effin spooky, just spent 3k rebuilding mine put 7k light miles on it, haven't drove it from 3months and today I get a CEL for stuck shift solenoid open. Now your vid on my feed... helppp😖😖🤢🤣

[@FirstLast-we8cb]

There is a lower ratio 1st gear after market option for the 4l80.

[@pmotorsports8276]

Is the juice worth the squeeze? $500 for a planetary gear. If you're upgrading to a 4L80E. You have the torque to power thru. The first gear

[@dannyflood3291]

Thanks LT great info, keep on growing this channel you're doing great!!

[@LawrenceTolman]

Thanks, will do!

[@Icysoles60]

Thanks for the great info, always been a good source of info, and great for us AWD guys at heart!

[@littlebossdave]

I swapped my 4l60 to 4l80 and never looked back on my Silverado

[@arnoldhinojosa247]

What kit would you recommend to rebuild a 246 transfer case that's on my 2006 chevy silverado? I tried to find a good used one but it seams like I'm better off rebuilding mine even though mine started making a clicking noise which I think is probably the chain inside?

[@LawrenceTolman]

never been inside an NP246 actually, but as long as therebuild kit has Timken or Koyo bearings I'd be OK with it

[@arnoldhinojosa247]

@@LawrenceTolman o OK awesome and do you know of any kits that do come with those bearings or am I better off getting a bull dog transfer case from the gear shop the have them for like 700$ but not sure if anyone has had good luck with them?

[@travismcalister5241]

Can you talk about the segment swap you will have to do to the pcm for the 4l80e swap.

[@LawrenceTolman]

yup, I'll show that when the time comes

[@reevehicks9101]

We broke one of the 4wd extension housings before. Can’t tell why it broke but cracked it almost all the way around

[@LawrenceTolman]

Glad I’m gonna use the cast iron one then!

[@2sscole]

Put a link for the input shaft adapter

[@detroitamerson8789]

I second for a link

[@Ttbestas12]

i would like to know that as well! the shop @UCgUv1JO96uqm0sCxoHm48yQ mentioned looks like junkyard

[@recklessgarage7921]

can you do a video on rebuilding that transfer case. im also doing a 80e swap .

[@LawrenceTolman]

yup, that's the plan!

[@mac2800RC]

Anyone have the part number for the longer shift shaft?

[@TandD1w]

How's the 8.1 build coming? Hoping it won't just magically appear on your channel.

[@LawrenceTolman]

The big hold up is pistons at the moment. we decided to go with an even bigger/stronger setup, but unfortunately like everything right now, we’re waiting on backordered stuff (about four months so far) but hopefully we should get the stuff soon. I’ll show everything on video as soon as I get it back from the machine shop.

[@Boostededdy]

Can we use the actual dip stick from the 4l60 into the 4l80 tube?

[@LawrenceTolman]

I believe so, yes. But its always good to verify where the level is supposed to be with the pan off

[@mattrodgers4878]

You can bolt in every aftermarket upgrade into a 4L60E, it’s still going to be weaker than a good used 4L80 with a shift kit. I have built many 4L60E and they are pretty reliable up to around 550-600hp, depending on how heavy the vehicle is. But they are t cheap. Your time and money ahead just biting the bullet and doing it once. If you have big power and just have to have overdrive, use a 4L80 assuming it will fit.

[@LawrenceTolman]

That was kinda my theory, rather than messing around to maybe have a built 60e work out, I’d just go right to the bulletproof one

[@timmyneeley478]

Awesome truck

[@12sreyes]

What cam are u running ?

[@LawrenceTolman]

its a 220/224 @ 0.050

[@finlay230]

excellent info, thanks for sharing !!!

[@seaox2109]

4l80Es can be converted to a 6 speed! They sell them on Summit Racing. Great transmissions. I love your content!

[@musclebone7875]

The 6x 4l80e transmissions are a lot weaker than the 4-speed.

[@jomomma8291]

Why all wheel drive when you have 4 wheel drive??? I don't understand the advantage?

[@jomomma8291]

I do understand the diff.

[@LawrenceTolman]

Personal preference really. I like that it’s always there sending power to the front, and you can use it in dry pavement while turning corners and not have to disengage after a drag race or anything like that

[@techadjunkie]

I would like to see you do the 6l80e swap and not the 4l80. You’re all about doing things different and everyone puts the 4l80, few do the 6l80.

[@LawrenceTolman]

I do like the idea of a six (or more) speed auto, but I’ve heard mixed results with the 6l80 trans holding up to lots of power. I know they can be built up, but the 4L80e is kinda the “old reliable” trans.

[@abnpthfdr2934]

LT, you give the best descriptions and explanations ever. Congrats on your sponsorship!!!

[@LawrenceTolman]

I appreciate that!

[@LittleOldBoat]

Good vid! Love the info!

[@tyronetripod8536]

Sounds like my EX GF ! She disrespected me ONCE in a minor way and i dumped her. She went out of her way to suck up and i took her back, then she did it again in a major way on a working vacation, by kicking me out of the hotel room and trying to leave me stranded. Even though noone else seen her actions I dumped her ass on the spot and never looked back. I only wish it had happened 2 days earlier as not one but two hot waitreses at our hotel seemed to be quite flirty, especially when she wasnt around, lol

[@floridabrushanddirt2482]

New subscriber from Florida

[@LawrenceTolman]

Thanks for subbing!

[@floridabrushanddirt2482]

@@LawrenceTolman you got it buddy getting subs can be tough 🤣.

[@chuckschob107]

That knife didn’t seem sharp to me

[@actualogy]

videos are badass LT

[@thehoule70]

New subscriber !!! Yo Get errr done already excited to see if finished ehhh 🇨🇦

[@Hitman-ds1ei]

Disappointing you didn't keep 4L60E and up grade with Sonnax parts, would be more than adequate for any HP you will ever see and the big downside to 4L80E is it spins entire rotating components at Overdrive speed unlike 4L60E which gives longer trans life and uses less HP, Sonnax parts ate exceptionally well designed including front half billet dual clutch convertor upgrade, and your going backwards with a front lube 4L80E??? and to top it off your reducing the 32 spline shaft to 27 spline to fit transfer and your worried about 4L60E strength???? What are you doing for crankshaft spacer to 4L80E?

[@LawrenceTolman]

They do have some great parts for the 4l60 for sure. Also, I’m upgrading the transfer case input, not downsizing the transmission output.

[@lawabidingdad]

I have a 4l80 in my truck it's great lost power but obously your not going to have that problem

[@LawrenceTolman]

yup, the 4l80 will for sure absorb a little more power than the 4l60 does

[@jeremyhanna3852]

The best way to build a 4l60e is to swap in a 4l80e

[@LawrenceTolman]

very true!