I have a 1981 Toyota pickup and the harness shorted and fried all the way through the truck. I rebuilt the harness but it shorted again. I found a harness that's in a 79 pickup but its 4x4 and mines not. Will it work and if it does do I have to modify it?

 

Might have better chance at getting an answer if you post in the main tech forums. Pretty slow in the Texas forum.