Ok, so I just picked up an unfinished s-10/K5 hybrid from a friend. What I wanted out of it was engine, tranny and t-cases. That leaves me with a frame, springs, what I believe to be d44 front (flat top knuckles) and rear axles, and an s10 cab. All this will be for sale soon, but what I don't know is the year of the frame. The Guy I bought it from wasn't sure. Is there a definitive way to tell the difference? Oh, and if it is Gen 1, can I still use the rear springs as doners for the front of my truck (52" spring swap) ? Thanks a million guys!