i got a 4l80e in a 91 chevy and its toast it has no gears whatso ever and a rebuild is 1200 buxs. it has a 454 in it and 4x4. my ? is can a 95 model 4l80 work on my 91. i was told the electronics are different and i need one out of a 91 or 92. is this true cuz this is worse than lookin for a needle in a haystack lmao. i can get the 95 model with tcase for 400 buxs so this is a killer deal imo. is there a plug adapter or anyway possible to put this tranny in my truck?

who told you it wont swap over?

a tranny shop around where i live lol. so can i put it in there. will everything plug right up or what.
can i swap the internal wiring from the 91 model to the 95. also i will be using the torque converter from the 95 also. my dad has a 95 model also and i looked at his plug and its a big square one and the one on the 91 is small(i might have this backwards lol). i searched around and read about swapping the wiring but can someone go into specifics on this for me so i dont waste my 400 buxs and i cant get it to work. im a dip when it comes to electronics.

i cant say wether it would work or not. I was just curious. call around and talk to some more tranny shops. I dont know of any major design changes. switching plugs is always common. you might check over on ls1tech.com. the 4l80e is becoming a popular swap over there. they may know a little more.

It won't work. They changed the electronics in 94. Check your plug you'll see they are different.

I'm not sure what you can swap in and out but you can't just swap the wiring, the Valve body is different. the clutches and stuff are all the same so if that is your problem yes you can swap the clutches and drum. If you do swap parts make sure to put in a new imput shaft bushing and drill out the front fluid return.

im thinkin bout buyin it and just putting the good stuff in mine but how bout some more info on the drilling of the front fluid return and the torque converter from the 95 can i use it to?