Looking to put a 4l80e behind a 5.3 out of an 01 Silvy. I'm putting it in a swap project so the wiring harness might not be an 01. I'm thinking about a harness/cpu for a 6.0/4l80e that's in the F/S section right now.

Is there a certain year range I should be looking for on the trans or will any 80e work from any year?

 

You want 2000+.

 

I just went for the newest model I could find with the lowest miles. I wasn't planning a full rebuild and there wasn't a huge difference in price between a 1 yr old of 5 yr old trans, so I bought one out of an 07 classic.

 

Thanks guys.