I bought a ’63 C20 as a total rust bucket. It is a 6 cylinder and granny 4 speed. Decided I wanted a 1/2 ton stepside with a LS. Took 6 1/2 years of take apart, put back together and take apart again. Engine and trans came out of an 04 Tahoe, rear differential came out of a 98 Silverado, front suspension/ disc brakes came out of an 86 chevy. Many LMC parts on this truck.