4L80E Transmission teardown and update tips and tricks 

I've heard people say transmissions are complicated. I had no idea how true that was. Soooo many parts. Very interesting to watch.

Thanks for the video sir. I haven't messed with the 4l80e to much. I have messed with the 400's more.

great info. You are always easy to understand whatever you explain!!

hi Dave you do a great job of teaching i have to build my 4l80 it lost 2nd so i been looking it will be my first getting to old to do many ThanksJimmy in Alabama

Hi Dave great video,I agree on bushing on this unit,very critical worn bushing create heat,always too transgo hi temp sealing ring kit with sonnox no walk case bushing.

I have built several 80s with a d3, it’s the best on the market, also built them with other. Brand ones, the were too slow, the d3 had fixed line pressure that works great

Whats the torque on that "heavy duty transgo" bolt? Broke a f***** allen wrench. AN ALLEN WRENCH. lol

i bought a 99 silverado 2500 4x4 last summer it shifted perfect but when november came around it hesitated to shift in 4th gear until it warms up i took it to a shop they said they had to drop the pan and they said they found metal shaving in it but 3 days after i got the truck i drained the fluid and there was no metal shaving in the fluid they charged me 406.00 to put a filter in it and of course they wanted 6800.00 dollers for a tranny and install if i let the truck warm up to a certain spot on the motor temp guage it shifts perfect i dont get it lol

Any links for parts ??

I have a 2002 2500 HD Chevy Silverado 6.0 gas with the 4L60E in it and the transmission seems to have been messed with before I bought it. It acts as if the Tow/Haul Switch is on. When I accelerate it won’t go into second gear until I reach 20mph and for third it won’t go in until 40mph no matter how slow or fast you go. And when it changes gears it makes your head go back. And the more the you are on the throttle the harder it hits when it changes gears. I have been in vehicles that have had shift kits before but this is on a different level. The truck have 12” if suspension lift and a three inch body lift and the tires are 38”. I have heard transmission guys say that the 4L60E has the ability to create enough line pressure from the pump the break not only the case but internal parts and I’m afoot the driveshaft twisting or the reared blowing apart. Is there anything that I could do to calm it down and make it safer to drive ?? Thanks and I hope that you get this.

If you had very little money and bought a tranny from a junk yard before putting it in what would you do to it?? Do you have any suggestions? Perhaps this could be a good video. I'm going right now to pick one up.

Question: I'm rebuilding my 4l80e and had to replace the reverse drum. Now mine is a 95 model, yet I got a 99 model replacement drum from the part store. Will it still work, or do I need to get the correct one?

I have a 95 4l80. Attached to valve body is a plate under the dipstick hole. I’d guess it limits how deep the dipstick goes. Any idea or input on that plate

I tried to rebuild my 4L80, watching all the you tube rebuilders. but my trans won’t shift. It stays in in the drive gear, I have been searching the web. On how to check components, with poor results. Would you have a link, which might help me?

So can u put the 97 98 4l80 behind 6.0 ls engine

I watched 16 mins of a guy speaking English, and understood not a single word he said. I was poorly raised 🤦🏽‍♂️