[Flat1TON]

I pulled a 454 + an automatic tranny from a '89 Chevy 1ton dually 2wd. I'm not sure what the tranny is. Any input on what was available for that year is greatly appreciated. Thanks

 

[45acp]

It is a turbo 400. Now send me a beer.

 

[Flat1TON]

Sorry dude, its not a 400. Thats what I thought it was when I pulled it. No beer for you. I think it is a 4L80E. Does anyone know how to I.D. one of these?

 

[Black Dog]

No 4L80e until 1991, so you are either confused about the year of the truck, or it has been swapped in.

 

[Hvy_Chevy]

Go to google, and look for the tranny pan shapes

 

[Davethorik]

It is a turbo 400. Now send me a beer.

+1

 

[oldjeep]

Some of them actually have a 700R4 in them.

 

[45acp]

If it really is an 89 model, and it really came stock with a 454, then it *will have* a TH400 factory. If someone swapped in some different tranny, it could be who knows what.

As mentioned, google up some pan images and compare them to it.

 

[Krylon..]

Post some pics of the pan! :flipoff2:

 

[Flat1TON]

The google search worked. Its a 4L80E. After breaking the motor down, it is obvious it has been rebuilt once aleady. The 4L80E probably went in with the rebuild. Thanks for all the help.