4l80e Swap in 99-07 GM Truck Part 3: wiring, tuning, plus a test drive
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- Parts links added below...
This is the final installment of the transmission swap in my 2000 Chevrolet Silverado I call the UglyTruck. It's not much to look at, and when I bought it, the original 4L60e was blown and needed to be rebuilt. Rather than mess around with the stock transmission, I wanted to upgrade to something that can hold a ton more power, so the 4l60 came out, and a junkyard 4l80 went in. My other two videos I show the beginning steps of the process which include removing the 4l60 and installing the 4l80 onto the 5.3 LS with a crankshaft spacer and flat flexplate which I got at the junkyard along with the transmission. I had to modify the crossmember to make it fit, and then extend the cooler lines, and today we handled the tuning, the segment swap of the transmission, and of course the ever important test drive.
Everything went smoothly for the most part, except now it is a bit slower on take off, even though I put in a higher stall speed torque converter. Right now the truck has 3.42 gears in the rear 10 bolt, but I do want to change em out for 4.11, 4.30, or even 4.56 depending on what size tire I go with. Stay tuned for more progress on the UglyTruck!
Parts Links from Amazon Affiliates
4L60 to 4L80 adapter harness
amzn.to/398RNoC
4L80e internal harness
amzn.to/3lX4fv8
Slip Yoke
amzn.to/2V4AT2d
conversion universal joint
amzn.to/2ITt2lA
Main Vlogging Camera I use every day, Sony ZV1. Has excellent image quality and is easy to use for a non-camera person
amzn.to/3oeFGvi
Extra Batteries and Charger for Sony ZV1
amzn.to/37zI21X
Tripod (gotta have two)
amzn.to/3dOK52V
LED Light on top of camera, eliminates "raccoon eyes" from shadows
amzn.to/2HpsDX0
Wired Lav Mic for great audio
amzn.to/2TTJrIE
External Shotgun Mic for outside shots
amzn.to/2Th8h4Q
GoPro Hero 7 Black for B-roll and POV
amzn.to/37sXhJP
It's good to have the truck up and running for the first time since I've owned it. While I do love the 4L80e for its strength, I now need to re-gear to help the truck get off the line a bit quicker.
How about 6L90, 8L90 rpo MQE and 10L90 swapins for LS 4.8+ engines in the GMT800 platform?
Fat turbo will take care of that. Great vid 👍
Hey LT I’m fixing to swap my 60e out for a 80e an I was wondering because the transmission I got has a bolt on yoke do I need to swap it out for a slip yoke ? I have two peice driveshaft
@@84yoder I can't remember the u joint part number, but I used a u joint that fit the bolt on yoke and the stock 2 piece driveahaft and it worked great
@@srnrox1 ok thank you. I’ll try that
Even your personal videos you have that “host voice”. 😁
Excellent, I've been looking at a lot of these swap videos and nobody addressed the pin-out and tune in any great detail. Thanks!
Really like the way you explain things, and give information to help others locate the parts. Keep up the great work
Much appreciated!
Agreed! Awesome video and nice truck
And in this episode of trucks!
You're doing an awesome job with these videos! Well explained and concise!!
I appreciate that!
Glad to see LT have his own channel
Thank you 🙏🏽 look for a 4l80e thought 4l60e will do but won’t after research
I think it would be cool to see this truck done up in stages (ie full bolt ons, shift kit, gears, etc... then the real power adders blower? turbo? nitrous?). Then, maybe start on the looks department? Great channel by the way! Looking forward to future videos!
hey, thank you so much! that is basically the plan for the build, to start by making the truck driveable and reliable, and then turn up the wick a little to make it fast!
@Lawrence LT Tolman I love your videos. I have a question. I have a silverado with a cammed lq4 that I want to turbo. Eventually I want to go 408 with a big cam. I'm only planning to run 15psi on both setups. The question, is there any benefit to running a vsr80mm or bigger vs 7875 at that boost level?
Great videos LT they been so helpful you explain things very well.... keep them coming!
Glad you like them, and thank you!
You can do the wiring for free, and it's probably a bit faster and simpler. There are no additional wires needed!
Finally! You tube hid you on my feed.
Your vids weren’t even in my watched history.
DOC sorry, that wasn’t TH-cam it was me. I had to make everything disappear for a little while.
How did you merge the segment swap for the tune I'm new to hp tuners an trying to get a good understand of it also what tune repository are you using
Just remove all torque management and set shift times to zero. I know you did a new rear end but there are shorter 1-2 gears for the 4l80
Glad to see you got it going. I have the same swap in my truck, 6.0 with a 7875 and a 30" drag radial with a 3.42. Itll 60 foot sometime tomorrow. I think a 4.30 would be perfect.
yeah, I hear ya there. One of the last trucks I did with a 4L80 I put in a 4.11, but almost wish I went with a 4.56 lol. I will likely try the 4.30 this time around tho...
It's sure is cool that y'all address this, I did a lot of research on getting my gear ratio right for my lifted OSB with 4l60e and 35-37 tires, have 488 and its perfect, The hard part was the research and doing all the math to modify my own speed sensor by soldering on a dip switch and figuring out the binary code, my problem is the now is it's old and soft, I would like to upgrade but I live in BFNW with no tuners around and I'm computer illiterate, But you guys just save me a big headache and big bucks and going back to a big sluggish turd.
I'm putting a 4l80e transmission into 97 gmc Sierra k1500 got everything in but can not see how were to put the second speed sencer in to the computer I'm in New Zealand so hard to get parts
Kevin Campbell did you get the extra harness and pigtail? On those computers the pin out locations will be a bit different from the 1999+ stuff, but the principal should be the same
@@LawrenceTolman thanks yes we did get the harness and pigtail. Just were having issues with the pin out location and getting it tuned. It has currently got 2nd and reverse.
We have got it working now it shifts mint thanks for your videos
Awesome video. I found this just in time. My 4l70e just went!
Appreciate your videos from Houston Texas
I did a 6.0 4l80 swap on my 08 c1500 but I got everything from the junkyard from a 10 2500
Everything was gen 4 engine wise
I feel like if you did this on a 99-06 you would have to use everything from a gen 4 engine ecu as well
With out doing segment swap tune truck won’t start ?
Enjoyed watching you on Saturday mornings looking to 4l80 swap my extended cab 05. Would you be avalible if theres a question or two with tuning? Definitely would compensate
Remove the torque management for burn outs
I have a 2008 5.3 Silverado with a 4L60e. I've toast the transmission twice towing 3900 pounds on a utility trailer. You think doing the swap to a 4L80 will do the job with no problems? Rebuilt 4L80 with upgrades?
You could pull a trailer twice that weight with a 4l80 without issues lol
Enjoy your videos.
Glad you like them!
Awesome
aren't you that Guy from Powernation's Truck Tech?
Hi does anyone know if I do this swap on a 4x4 can I just change out yokes as well or is a whole drive shaft need to be made? Thank you
Did you use the 4l80e converter with the 6.0 flexplate? And did you use the 5.3 or 6.0 starter?
used the 5.3 starter, and the 6.0 flexplate and spacer
What is the part number for the slip yoke
Ay I’m doing a 4l80e swap on my 2003 Silverado 1500 what’s the right adapter harness??
This video is a bit old but what about a NV 3500 5 speed 4x4 converted to all wheel drive 5.3 in a 1999-2002 silverado
Sounds like a great idea to me!
Hey LT great video and super informative thank you. Just subscribed! 💪🏾 was wondering if that 4l60 to 4l80 harness adaptor works with 4x4 transmissions or is there a different adaptor? Thank you again.
yup, the harness will work with 4x4 or 2x4.
Hey LT is there a specific year 4L80E I should be looking for, specifically the “better” 4L80E? I have an 06 CCSB 4.8L
I have a 2006 4x4 that I would like to do this conversation on.Any advice on the 4x4 aspect of this conversation?Awesome work by the way.
you can re-use your existing transfer case, but you will have to take it apart and swap the input shaft of the transfer case to the larger 32 spline. Your existing driveshaft slip yoke will still work, but not sure if there will be a length difference or not on a 4x4.
@@LawrenceTolman Rear driveshaft on a 4x4 has to be shortened by about 1 11/16", and the front can be swapped to a 2500HD driveshaft without any modifications.
Both files need to be purchased/unlocked to segment swap correct?
Nice explanation, thanks
Great video and information! I’m swapping a 4l80 into my 03 z71 that Mimics “red tide”. I’m also going AWD. Do you have any idea how an nvg149 would mate to a 4l80?
the big thing you need is the 32 spline input shaft for the NV149, which is available from Modern Muscle Salvage (in MI). Ask for Tim
Great video, you gained another subscriber!
Awesome, thank you!
Looking good! More power eh? Blower? Turbos? Looking forward to it!
not entirely sure what direction the build will take, but you can bet it will have a bunch more horsepower when its done...
What tuning software were you using?
HP Tuners
I know this is 3 year old. But was wondering what speed sensor the new plug went to
Where did you get the wiring connectors
I want to do this conversion and 6.0 or 6,2 swap I have the same truck
Did you have to bring down the transmission to do it
Hey LT not sure if you’ll see this, but im in a similar situation. I bought a stock 5.3 4wd needing a trans that has a 3.42 gear ratio.
I scooped up a 4l80e from a local pick and pull but not sure about going through with it. I’ve thought about just picking up another 4l60e.
Would it be drivable with the stock 4l80e converter or would an aftermarket even really help due to the 4l80e 1st gear gearing and the 5.3 lack of power. What stall would you get if you think a converter would help much being stock no cam etc.
I plan on doing the 4l80 awd conversion in a k1500 like the one you did on PN. Any tips?
Edward Mojica it’s very straightforward. Just gotta grab the 32 spline input from Tim at Modern Muscle Salvage.
Awesome video!!!!!!!
Glad you enjoyed it
I have a 06 5.3 Silverado, I have a 93 4l80e, what would all the part numbers that I will need? If you can give me info that would be great!!!
How about 6L90, 8L90 rpo MQE and 10L90 swapins for LS 4.8+ engines in the GMT800 platform?
im sure someone out there has done it, but I havent looked into that newer stuff just yet
Great video!!
thanks for watching!
What did u use to tune the transmission ?
What do I need to swap out my nv3500 in 04 2500 HD wanting auto swap it (4L80e) other than a coolor, trans, lines tired of the manual. How would I be able to control the trans since it had a manual
I’m sure I missed it but did you have to shorten the drive shaft for the swap? I have the same truck extended cab
My truck feels weird I have the 5.3 with 4l80e with a 3200 stall when I accelerate it kinda jumps unless I don’t step on it hard 😢 what could it be anyone else with this issue??
I have 3.73 gears in my truck but unfortunately it’s a 4.8 think swapping in a 4l80e would be beneficial? I hate that if I floor it after about 30+ mph it’s just a dog as it won’t down shift with how short 1st gear is
Was 55mph in first because of your tune modifications or was it the stock 2500 tune?
not necessarily a function of tuning at all, just how the gear ratios combine between 1st gear in the trans and the 3.42 (at the time) differential ratio.
Did the driveshaft need any mods besides the conversion u joint? I thought you would have to shorten it?
no, on a 2wd like this the case lengths are so close, the stock length driveshaft worked, and still had plenty of room on the slip yoke for movement at well. I think maybe on a 4x4 swap it might be difference because of the 4wd tail housing, but not positive.
As for the tune after the 4L80 is installed, if you don’t have the software can you drive it to get the tune put in?
no, because some pins are in slightly different spots and the "force current" for some solenoids is reversed. best to get it tuned before you drive it.
Is it possible to do a 4wd conversion? If so can you do a video on it.
I wanna see as well. Anything is possible
Hi just came across your video very detailed thanks ? All the parts you list are the parts I will need to do the swap . I. Looking to swap my 60 to a 4L80E on my 2005 1500 2wd silverado. What's the total to get it all going if I have the 4L80E already? I got a quote yesterday of 5200$ out the door. I have a 2 pice drive shaft in it already! Can't find the first to videos of the swap! Thanks
Great video! Can’t wait to do the same to my Tahoe.
Curious question…. Trying to find a ballpark price for a 4 11 swap for the rear. How much do you think that would be?
Contact yukon gears and get u 4.10 or 4.11 and a yukon duragrip you will be happy.
I have a 99 Silverado 2500 with a 5.3 and a 4l60 but want a 4l80 in would i have to tune it since mines already a 2500 ?
Yes because the tune is not based of the body or size of truck, its based off what trans is in the truck. So have to flash in the 4l80e
Hey I’m doing a 5.3 4l80 swap in my 99 Sierra 2 door, I’ve noticed there’s multiple lengths for the slip yoke, do you think 7.5” or 7 & 7/8? Or does it not make that much or a difference
Buy a driveshaft from a hd truck. Make sure the hd truck you get the driveshaft from is the same length as your truck. Then purchase a ujoint 1-1/16 diameter to go into your rear differential, the other side of the ujoint has to be 1-3/16 diameter, this side will mount onto the rear of hd driveshaft. This is the most inexpensive way of doing it. Less than $100.
What about crossmember? And driveshaft still use factory?
I modified the crossmember and simply swapped out the yoke on the driveshaft in the video before this one...
What tuning software are you using
Hi. Can you tell me what is the part number for those space I'm making my 4l60 to 4l80 swap on 2002 silverado and I want use the 6.0 flex plate
Do you need to shim your torque converter when you have the 4 L 80 and they're bolted to the 53
every engine/trans combo is different and you should always measure to make sure you have about 1/8" to 3/16" of free space between the converter and flexplate
My 4l80e has 2 identical Speed sensor plugs. Which one does the new harness plug into?
the new input speed sensor wiring harness goes to the front, your old speed sensor plug goes to the back speed sensor
I have a 92 GMC with the 4l80e trans.had trans rebuilt & they changed out the internal wireing harness on trans when they did the job.now my plug in on the truck side don't fit the newer style.they ordered the external harness kit but never came in so I got one out of a 1999 Chevy out of bone yard.problem is my 92 is a 12 pin screw in connector & my new one is 11 pin & hardly any of the colors match up.not sure what to do at this point.anybody have any ideas?
Do they not sell the older style internal harness like the one you originally had?
@@LawrenceTolman no.its been discontinued....not available.
I have a 6.0 with a 4l80 and love it I had it tuned but I guess he put a race tune in it and it hold the gears a little long and sometimes struggle to go into over drive and when it does go in it come out within 5 minutes I though about buy a stock ecm and putting the shift back to normal what should I do
no need to change the computer, it just needs to have the shift points corrected by a competent tuner.
How hard would be to swap a 5 speed to a 4l80e
Great videos bro.. I have a question. my truck is year 2002 and it also has a 4l60 transmission which year should i get a 4l80 to do the same job you did?
it would be easiest to grab one from the same year truck, but any will work. I found one from a 6.0 truck and grabbed the flexplate and spacer so it was a direct bolt on to the 5.3
Thoughts on a 4WD? I just burned up my 4L60e and I'd like to turbo my 5.3 eventually, so the 4L80e is a strong consideration. Thanks for the video! I'm wondering if I'd need a new/custom shaft from my transfer case?
Hi I was actually going to ask the same question, does anyone know ?
Love your video. Out of curiosity does the factory 1500 cooler lines line right up or can u swap the 2500hd lines of same year in and if so can those lines hook right up to same cooler
the 4l60 1500 lines wont work with the 4l80e rear cooler port, but yes, if you had stock 2500HD 4l80e cooler lines, those should work
@@LawrenceTolman Sweet my neighbors doing the swap but im helping him cuz hes never done a trans. He got the cooler lines with it
hi LT first off great show, I saw the show about the swap and after burning 3 4L60s I decided to go 4L80. I'm by no means a mechanic< but thanks to you and TH-cam, I got the mechanical part of the swap done. but I've been stuck for months on the electric part. I get 2 codes, one for the shift solenoids and the other for the TTC solenoid. is that common? thanks Bud.
Hmm… did you have the computer tuned with a segment swap for the 4l80? If yes, than likely your issue is with the wiring
@@LawrenceTolman no. I still haven't found anyone that can do it. I just installed it and re-pined it my self. do you think I need a new main wire harness. and do you know of where i might be able to send the computer to be flashed? you don't know how much I appreciate your help. Thanks!
Thank you for the informative video. I purchased a 4l80e with a 5.3 mounted on in. Installed it without taking it apart in my 2000 suburban. Truck drives great except it has low torque/ low power? Could this be from needing a tune? Or could it be possible it has a wrong torque converter? Any leads or help would be greatly appreciated.
I'm guessing it was originally a 4L60e truck, did you change the wiring around and to the tune for the 4l80? It has different internal electronics that require a segment swap in the computer to handle the different polarity on the solenoids or whatever is different.
@@LawrenceTolman yes it had a 5.3 with a 4l60e. Pulled them both out and installed the new 5.3 and 4l80e. I used the 5.3 wiring harness and used a 4l80e adapter. I did not do a tune, but is on the list of things to do. I noticed when I drive in reverse it picks up speed like normal. If I put it in drive it will barely make it up a hill.
What do you recommend to do the segment swap?
I’m swapping out my 4l60 w a 4l80 as well, but a bit confused on the drive shaft length. So all I need to change is the yoke? Also do I need to change input shaft or add transfer case adapter? Or is that only for 4x4 (my truck is a 04 Silverado 2wd crew cab)
if you have a 2wd truck, then yes, all you need to do is swap the yoke on the driveshaft. The stock length will work. If you have a 4x4, then you need to swap out the transfer case input shaft and have the driveshaft lengths changed...
@@LawrenceTolman Thanks man!
Does anyone know which version of HPTuners he was running?
For this extended cab 2wd with 4l80e, i seen he used original driveshaft from the 4l60e, did it not have to be shortened? All it need is the new u-joint?
I am also curious!
What Flash program did you use?
is it the same process on the 08-13 gen silverados?
Any advice on doing this on a 2006 Sierra Denali Awd? Thanks
i think the challenges there are the driveshafts both front and rear will have to be shortened/lengthened, and you'll need to swap to a 32 spline input shaft in the transfer case. otherwise, most of the changes will be the same
Lawrence LT Tolman very much appreciated!
what yoke did you use for the 4l80e
Great series of video! Question;
Will a 2009 Chevy Cargo van, 5.3 with 4L80e transmission fit a 2003 Tahoe 5.3 with a 4L60e? Please advise...
yes, i have an 09 80e in my Tahoe. I have a 6ltr swap, but its doable..
The 1500 vans came with the 4L60e too.
What cold air intake you got?.. nice build
did you notice a better gas milage?
Where can I find the software for the tune? Thanks
And is it possible to do it on either transmission?
Is the mpls necessary on the 4l80?
Hey bud what software did u use to tune
HP Tuners
Hi there, can be fit on harness LS1 Camaro ?
I plan to install it ( 4l80e )
yeah, I believe the steps would be very much the same
You need alot of money. 4L80E has no provisions for torque arm. Check out SPL.
Spal
What flex plate did you use?
Stock 6.0 truck flexplate and spacer
What’s the converter u joint ?
What stall are you running?
You paid 900 bucks for a junkyard trans of unknown milage??
I did. I searched around a lot for a better deal, but the prices only went up from there
@@LawrenceTolman well at least it works and shifts good! Really hoping the one I got off a guy on fb actually works
Supply and demand. I've seen non working core's go for $400
If u was to do the swap for a customer how much would u charged?
Does this work on 08 Silverado too?
Can I just change the ecu from a 4l80 truck
you could, but you'd still have to do some tuning to match up the VIN number or disable VATS if you do an ECU swap from one truck to another.
Do you have to get it tuned or will it work without it ? If I do have to tune it what do I need to do it ?
yes, you have to tune the computer to work with the 4l80 vs the 60. It will not work right. If you have HP Tuners, look into a segment swap. basically, you need to change the transmission segment of the tune with one from a factory application, like a 2500HD gasser with an 80e. Then, tweak the shift points, tire size, gear ratio, and so on to match your application.
@@LawrenceTolman In the video it looks like you did the programming with a laptop how does that work ? Or was that one of those $3000 snap on scan tools ?