Well after many hours of reading wire diagrams and comparing wire harness I discovered many differences between the two.I have 3 complete harness. One from a 1986 4runner,one from a 1986 turbo 4x4 truck. And I also have one from a 1987 turbo 4x4 truck. All were manual trans trucks. All were very different. I started tearing out the under dash harness today in the runner. I also need to install the fuel pump harness that goes back to the tail lights. The truck harness and 4runner harness are totally different.The weird thing is the wiring for the top and window go down the other side of the truck. The truck fuse box has no provisions for that. But since I no longer have a back window or top that's no big deal.