Questions about a \'70 C10 My buddy has a 1970 2WD C10 that we're thinking about converting to a 4X4. I have a couple questions. He has a 4 spd Muncie (w/ granny). Will any type of t-case bolt up to this tranny? He has a coil spring setup in the rear. Does this truck use the same frame as the leaf-sprung 4WDs? Just want to see if we can convert the rear to a leaf with no problems.