Im from SoCal. and im trying to either find a parts truck or another truck and they're very hard to find. i might find 1 for $5000 plus. looked and junk yards, marketplaces, and auctions. i know that 1993 it interchangeable. Just cant find info in them. when i got the truck they took the whole wiring harness and computer.(it was a part truck and gave it to me at no cost). also needs some parts here and there. 1994 4wd GMT400 extended cab, with a 5.7l TBI 4l60E, is buy vin also. I remember doing some research also and some website only went up to the 5.0l engine and not 5.7l. If anybody have manuals, tech books on this vehicle i would highly appreciate you sharing because im having a really rough time figuring this out @HoosierZ @richard wysong