4l80e forum. 4L60e - I am planning a LSx engine swap into my Caprice and I have been told that a 4L60e is the way to go. Question At what power level does it become necessary to upgrade the input and intermediate shafts to better material? The trans is a 97 or 98 Can it really be this easy, just bolt on a valve body and presto it's a 6 speed, and how in the hell does that work? Well I found another 4l80e for 200 bucks that is a GM remanufactor piece that is very low miles so I grabbed it last night. Transmission is shifting through all gears nicely. than a 400. 1L that would would run up and down the interstate (big, long hills) loaded at up Automatic Transmission - GM 4L80E Transmissions - I have a 1986 Chevy Monte Carlo LS that I plan on putting a junkyard LS engine (probably a 5. 0L w/4L80E). What brand do you guys recommend? I have DIY: 4L80-e complete swap guide. My question is, what era of 4l80 will work for this swap? While the 4L80e is a stout unit, mine has 258k on the original in a 7000 pound truck. It's not a difficult job at all. 8L But it drove and shifted fine but had about 200k miles. Pontiac - Street The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. I thought I would share some of the info I have found, maybe this 2-22-17 I received a 4l80e with 100k miles, took the pan off and it looked very good inside, red cherry fluid and minimal clutch material. . I haven't seen many The 4L80e's snap off (at least from what I have seen) where they step down into the od planet, which is quite a bit smaller dia. The original plan has been to replace all electrics, Rekit My 1999 Suburban 2500 came stock with the 5. If you 4l80e builders, best parts / specs recommendations Jump to Latest 1. The conversion went pretty good with not much modification or fabrication needed. 7L L31 350, the "LS style" bellhousing 4L80E, and the longer converter hub. Will be a slow build with all the other things going on, but will keep this thread up with info and parts list along with progress. From what I've read, the kent more tools are not necessary, but one special tool that is There is no such thing as a TCC limit valve in a 4L80E, all you have is a TC Limit valve that limits the pressure going to the converter when the lock-up is commanded OFF. My car gets driven regularly on the street along with street raced and some track What are the differences in the 4l80e transmissions through out the years? I am asking because i have a 91 4l80e and want to put it into a 96 chevy Automatic Transmission - 4L80E guys - what size gears & tires are you running? - What size gears and tires are you running on your 4L80E cars/trucks? I know 1st gear looks a little high and OD a little Hello I'm new to the forum and this is my first post. Intermediate sprags DO NOT fail in 4L80 or T400 unless grossly overpowered, mis-installed, or lube I have been having a couple of issues lately and I am trying to get them sorted out. 4500lbs. With everything A stock 4L80E, including the stock converter, can take a huge amount of use & abuse. 2. 3), and I would like to put a GM 4L80E I am rebuilding my first 4L80 and i am having issues getting the pump to go back thru the input shaft. The 4L80E is being found in more and more high performance, race, and tow vehicles I have a 2003 Silverado 2500HD with only 38K miles (6. but I want to ask you guys Would the So just curious what needs to be done to run a 4l80E in my 2000 F-body? Do I need a seperate controller or will the factory ECU work? Any mods to the trans tunnel? What about the I have a performance built 4L80E. a friend of mine said that if they( the pump halfs) are not aligned right, this is the result. Same I'm in the process of a 4l80 swap. I got my converter from Jake's Performance in Texas and they Funny, because I've probably built a dozen of these, but never owned a truck with one. The drivetrain runs great but struggles a little with 1st gear with no Limp mode on a 4L80 is 2nd gear, at that point, both solenoids are release. I had a couple questions that I wanted to get a sanity check on. Come join the discussion about performance, specs, builds, conversions, swaps, I have a 2005 Chevy Silverado 2500hd with a 4l80e transmission. Found 2005 4L80E core, and now the rounding up of all the correct tools for this project begins. I was considering those Good morning everyone. I am not sure if they are electrical (wiring or tuning) or I have a 4l80e from a 05 van that I want to swap into my 55 in place of the 4l60e before I brake the 4l60e with the turbo on the 4. 3 swap on my s10. Founded in 1991, it was also the first online forum for 4l80e My first rodeo with one rebuilding. I installed the 4L80e questions. Still have some I'm getting ready to overhaul/build my 4L80. Needs to get back together in a few days so I don't have time The thin 4L80E wave plate can slip under the relief-cut in the drum causing a burnt clutch or No 3rd/Reverse apply with a lower piston work surface So like many my rebuild project started off to be a pretty much stock rebuild and after a lot of research it is steadily growing in scope. 73 rearend. Become an expert on this unit today with this How are you guys setting up the frictions and metals your 4L80E's for high hp builds for just under 1000 hp? Street car mostly in a 2000 Camaro SS, no transbrake. My problems began when reverse started to not engage. 2-23-17 I C4 Tech/Performance - 4L60E to 4L80E conversion / adapter kit - I came across this website today that listed an adapter kit for the conversion. I already know about the GM Drivetrain & Suspension - 4l60e to 4l80e conversion - What does it take? 2003 Silverado 2WD. If I wanted to upgrade The early 4l80 transmission had both cooler lines going into the transmission close together on the right side of the transmission much as other gm transmissions. 3 to a 6. I installed wider TH400 case bushing to guide bearing, my concern is Solve 4L80E transmission troubleshooting issues fast. Has about 520hp NA now, 750hp NA and 8000rpm coming next round. If you are running a 4l80e, post it up along with whether it was Today's project was to get my 4L80 shifting correctly. Is this in production yet? Has anyone We would like to show you a description here but the site won’t allow us. I have the harness adapter already. Look onto LS1tech's automatic transmission The 4L80e is roughly 2" longer so the driveshafts will have to be modified, or you may luck up and find a compatible replacement at a junkyard i have a 05 silverado 5. I learned that to have a reliable transmission was to build the forward clutch pack on the I would like to know the pros and cons of both trans. 1994 is a stand alone year for the 4L80E as GM eliminated a 'cleaning cycle' associated with the electronic pressure control solenoid (EPC) so this required changes to the EPC, trans wiring Once you modified the 4l80e and use a higher stall converter the shift times may not be reported properly in the ECU and this could lead to over-adaption (crazy pressure adjustments Heres some info on the early 4L80E transmission problems. Thanks guys. I would assume an Re: Anybody use a 4L80E instead of a 4L60E for swap? Also be warned you need some extra computer tuning to have it control the 4L80e. To my big disappointment it is slipping in forward gears. Re did the stack up and with a 90 thou front pump shim, I have 13 thou of front end play and 8 thou of Help me narrow down choices. I thought it may help someone out. Ok, i have noticed a couple times form posts on the board that people saying the 4l80e sucks up alot of power, i wonder if anyone really knows in comparison to a TH400 swap or a "built" · Wiring Harness Adapter – 4L60e to 4L80e Transmission Plug and Play Adapter Harness LS Swap on Amazon · PCM Reprogram – Will use HP which trans is better and why the 4l60e or the 4l80e. (With part #s) Camaro DIY & HOW-TO instructions & discussions The 4l80e will fit with out mods to the tunnel!!! I think the guys got confused on the 6l80/90 as with it you have to mod the tunnel with those. As part of this swap, I'm replacing the weak 4L60 with a 4L80e. I How to: 4L60E to 4L80E transmission swap Why on earth would GM put such an anemic transmission in a heavy ½ ton truck, Avalanche, or Escalade? These transmissions barely hold up to All HP 4l80's I build receive minimum of 6 frictions with steel pistons Engagement 'feel' is also affected if you install the center lip seal on forward drum. GMT800 4L80E By no means is this a complete list. Automatic Transmission - This is whats needed for the 4l60e to 4l80e swap! - For the last couple months or so, I get PM's weekly asking whats Hello, I am in the middle of a 4l80e rebuild. 0 or 6. Has a Circle D triple disc converter that has been in the car for over a year but this issue started to happen Automatic Transmission - Looking for an EXPERT on 4L65E vs 4L80E - Hello folks, A&A Corvette is building me a nice engine that will have about 800HP on a long body all wheel drive CorvetteForum - Chevrolet Corvette Forum Discussion C3 Corvettes, 1968 - 1982 C3 Tech/Performance Will a 4L60E or 4L80 fit in a 81? Alright, so I did have the 15 thou thicker sonnax forward hub washer and used that. Just rebuilt my transmission during winter and just had a testdrive. This forum has helped me a ton through out the process of building my car, and I'm in the middle of a swap from C4 Tech/Performance - 4L80E conversionwho's done it? - I have been toying with the idea of a 6speed conversion lately but after working out some numbers I don't think it is going to be GM Drivetrain & Suspension - 4l80E Rebuild Thread - Well, after alot of contimplation I decided to rebuild my 4l80E myself. Plans no electronics. Even just 50% more power puts me over the 440 lb-ft input limit is 4L80e is rated at. Looking at doing a 4l80 swap in my truck as I'm looking to upgrade from the tired old 5. This turned out to be somewhat of a learning experience and I never found all of this information in one place, so I thought I'd post what The following is a list of 4L80E hard parts and modifications to perform on a stock 4L80E electronically shifted application with a transbrake that will support 1200+ hp is desired while I'm in the process of installing a fully rebuilt 6. Stuff like fitment, what power they can handle in stock form, and is it better to do the swap I finally drove my car yesterday after converting it from the 4L60E to the 4L80E. 0L in my 2008 Yukon. Learn causes, repair tips, and DIY fixes to keep your transmission road-ready. 3 with the 4l60e and i have been reading for a month that the 4l80e with out a doubt is way better than the 4l60e and i am trying to figure out what parts im going C3 Tech/Performance - 4l80e swap - Want to do a 4l80e swap. 3 with early model 4l80e?? - Ok guys im doing a 5. Heavy weight and big torque are also hard on the His 4l80e is priced very competitively with any other 4l80e on the market (lower that many). 8K views 1 reply 2 participants last post by WildWilly4x4 Mar 16, 2020 I GM Drivetrain & Suspension - 5. I have a 63 c10 long bed with inline 6, I bought a 81 c10 long bed to use as a donor vehicle for the cross member swap, 12 bolt rear end I drive extra hard, doing a 4l80e conversion in my TBSS 2wd. A point at which one must acquire more control over ecu C4 Tech/Performance - 4L80E Swap - Let the Games begin - About 2 weeks ago, I smoked my 700R4 after trying to make it live as long as possible I am just curious how many have made the switch. Why buy from another shop when you can buy from THE shop that was one of the first to Discover the top 5 common issues with 4L80E transmissions and learn practical solutions to enhance performance and longevity. I'm told that the oil circuit in the 4L80e is routed differently than it was for the TH400. . I thought I'd share a few things. I'm going to through a Transgo shift kit and let it go till I get this other My 4L80E is alive! I appreciate all the help on this forum. Parts spread all over the place at this point. Just wondering how much tunnel modification needs to be done, if any? I'm sure this Automatic Transmission - LS 4L80E behind a SBC/BBC - I always see on here how to hookup a preLS tranny to an LS with spacers etc. or leave out the molded rubber In reply to Curtis73 (Forum Supporter) : Is it just me or do the ratios for the 4L80 seem better for hot car duty than the 4L60's? Lot of added weight with the 4L80. After towing my 5th wheel (11,250 lbs) about an hour, I went to back the trailer into place and it took a very Picked up a core to start working on a replacement for my 97. I have been doing alot of research on the 4L80/85E transmissions lately since that is what I am swapping into my truck. When this happened for a while after it started if I waited long Automatic Transmission - whats the best place to buy a highly dependable 4l80e? - Im finally in the market for a well built 4l80e that id like to overbuild and I want to hear from you fellow There comes a point that many of us have already reached, and that many will soon reach. The 4L80 is a T400 with an overdrive section built in front or the 3 speed section. C4 Tech/Performance - C4 4l80e Trans swap - Has anyone swapped a 4l80e into a c4? I?m planning on an ls swap and wondering if I'm building a 4L80E for my car, replacing the stock rear thrust washers with a 350 pump bearing as done in TH400's. I know of a few besides myself, but I'm guessing there may be a few more. In the tune I changed the gear ratios for the transmissions, and also increased line pressures by 10%. The 90/91 - 12 or 13 2500 & 3500 pickups had them. but. Has billet input, direct drum, good stuff etc etc. Jason Automatic Transmission - 4L80e vs. I want to know if I do all that can I Been running a manual valve bodied 4l80 behind a 511 CI supercharged Big Chev for many years. Rebuild kit with all the usual required Green high energy clutches they hold oil Hi there all I'm looking for a converter company in the states to build me a bullet proof 4l80e converter that is behind 427 LSX with a 91mm comp turbo on it iv tried contacting a few 4L80e Saturday challange. It has been sitting for many years (about 7-8) in the hot Florida sun I'm starting with a stock 05 GMC Sierra 1500 4x4 with LM7 5. Starting a 4L80E information thread for those that want to learn more about these transmissions, how to service them, overhaul them or Starting a 4L80E information thread for those that want to learn more about this transmission (the best GM ever produced in my humble opinion), Automatic Transmission - LS V8 Automatic Transmissions, 4L60E, 4L80E, TH350, TH400, TH2004R, Powerglide, Converters, and Shift Kits discussion, how-to guides, and technical help. 3 180k miles 3. I bought a 4l80e off of CL that was from a 1995 chevy van. We had a truck with a fuel injected 8. what holds up the best? what tranny would you guys go with? Stock 4L80E converter worth using? Jump to Latest 13K views 12 replies 7 participants last post by stage20 Aug 25, 2013 SbcToLs1 Discussion starter I contacted Jake at Jake's performance, who has received many good reviews online for 4l80e stuff (mostly in the drag community) and he only recommenced a Trans-go shift kit, without Not to sure if i’m posting in the right thread apologies if im not, did a 4L80E swap from a 4L60E on my 94 k1500 with a 383 i have everything in truck runs but won’t shift gears and i’ve tried Few transmissions have seen more production volume than the infamous General Motors 4L80-E transmission. If you have no movement, forward, or reverse, you have an internal I finally finished up the installation of a 4l80e and a 3600 revmax stage 5 converter. But the truck will move as it is in 2nd gear. So perhaps that is the reason for the oil lube holes on the sun The 4L60E went out with some heavy towing and I swapped in a new stage 1 4L80E 1280 stall converter from trans depot. The 4L60E went out with some heavy towing and I swapped in a new stage 1 4L80E 1280 stall I’m going to rebuild a 4L80E using jakes performance stage 2 rebuild kit. I’m going to use the superior shift kit and I’m going to the dual feed direct clutches. 4l80e swap progress, need help. These are all the parts you need for the swap other than A forum community dedicated to all LS1 and LT1 powered vehicles owners and enthusiasts. 0L and 4L80e transmission. Pigpen has a host of transmission problems, so I'll run through them and how I fixed them, since we I have a 2007 Silverado Classic 3500 4x4 with the 6. How about an LS 4L80E behind a gen I SBC or I'm doing a bunch of upgrades to my 98 Camaro that's got an S480 on it amongst other small details.
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