So here's what I got going on. Got a 91 K5,(pops ordered from factory) been sitting in the pasture for going on over 10 years. Transfercase busted. engine worn out, front end worn out. Throughout the years I've had the dreams of getting this thing going again not for a daily, but trail rig. 2 years ago I acquired a 96 3/4 ton 4wd reg cab long bed. 454. The 96 runs great and nothing wrong with it mechanically. Original plan was yank the 454 and put in the blazer. Well recently I've had the idea of doing a frame swap. The 3/4 ton is longer for sure. I have a buddy that does welding and fab for a living. Am I missing something? Should I be able to shorten frame and driveshaft and be able to body swap? Seems like the way to go. Would love a LS swap but trying to just work with what I got already. Added pics of trucks in question.