700r4 to 4L80E- what is needed

[WJACKSON11X]

1991 Suburban 4x4

Might have a lead on a 4L80E out of another '91 Burb. What all is needed from the donor truck to make it work in mine? If memory serves me right, the 4L80e is computer controlled. Can I just use the computer out of the donor truck, or would I have to do something else?

 

[black dawg]

ecm and wiring harness. Should be a pretty straight forward deal, and all factory pieces.

I have been looking at this swap for awhile, but I cant find a donor 91 to get the ecm and harness from. Dont really want to do the aftermarket stand alone controller thing.

 

[Greg Ducato]

Computer and harness, transfer case and adapter, driveshafts, dipstick and tube, possibly some linkage items, flywheel with larger bolt pattern, dust cover.

 

[dyeager535]

In other words, the whole truck. lol. But not really.

 

[WJACKSON11X]

Dang, I didnt realize the transfercase and adapter had to be changed too.
Might not be worth the hassle and money. I'll check into it