Went through this with my 93 2wd. While you can find cab and forward parts just about anywhere, tailgates and box parts are virtually nonexistant in the aftermarket. They can be had via a Toy dealer though. You just gotta cough up the dough. An option is to find a body and fender guy that has contacts and will refuse any parts that are not pristine. And then wait. Had a box for me in florida and the day the guy that did the shipping got there, a yard guy backed over it with a loader! Bottom line, find a box in a junkyard or pay through the nose for factory replacement parts. Been there.