sounds like your tryin to do what i am, im goin for a mid 80s (pref 86 or 87) crew cab dually, but im tryin to find a 4x4 one so i dont have to buy a reman t-case, just rebuild it and find a reman zf-6 or buy one from a wrecked truck and rebuild it, im tryin to do a dmax conversion, right now im just figuring out everything before i get into it a whole lot, seems like i could do it just fine, ppe can make the harness a stand alone so im gonna keep my hopes up that i can make it happen