4L80E wiring harness

[cobra20]

Ok guys I pulled the wiring harness out of the burb today in the Pick N Pull. So I need to know what I need to do to change my burb from the 700R4 to the 4L80E I got a good chunk of the wiring harness some stuff was cut though so I need to figure out what to repair. Anyone have a wiring diagram for the 1991 4L80E. I got the 4L80E, NP241, Torque Converter, Flywheel, and the wiring harness for $370.

 

[1984dually]

Since you are swapping to a computer controlled trans you will need some way to control it. Current ecm will not do it. Possible to reprogram it but depending on the ecm it may not be possible. Several companies have stand along controllers. Ecm from truck that you got the stuff may work. Look on Autozone.com for harness info. They have a large database of books including wiring diagrams. You can print out and compare your existing harness to the one for the truck with the 4l80e trans. Assuming you know all the other mechanical stuff that you will run into.

 

[MadOgre]

Ok guys I pulled the wiring harness out of the burb today in the Pick N Pull. So I need to know what I need to do to change my burb from the 700R4 to the 4L80E I got a good chunk of the wiring harness some stuff was cut though so I need to figure out what to repair. Anyone have a wiring diagram for the 1991 4L80E. I got the 4L80E, NP241, Torque Converter, Flywheel, and the wiring harness for $370.

Oh that's a steal if its a good runner!

Is it a passenger drop 241?

http://www.fuelairspark.com/fas/transmission-controller

 

[cobra20]

Yeah it is a passenger drop 241 it was out of a 3/4 ton square body suburban

 

[MadOgre]

Oh perfect! was it a diesel?

 

[cobra20]

I wish it was I would have grabbed the hydroboost from it if it was. It was a 350