What is a 3RZ? I'm not familiar with Toyota's enough to know the motors. I saw a supra 6cyl at the junkyard last week but a lot of wires. I'm looking for something fairly simple but fuel injected. I'll probably go with a Chevy 4.3.
I'm pulling the body back off the truck and change the rear hangers on the front springs. I used the rear hanger and put it under the frame but it is too low. I'm going to cut the bottom out of the body mounts and put the bushing through the frame like the stock trucks have. I'm going to attach a 2x6 rectangular tube to the body mounts and add a couple of tubes in to the frame to support it. I can use that for a rock ski and attach my exo cage to it for more support. Hope to start on that this weekend.