[too much stuff]

I think the leaf spring option was pretty common on the GMC's. I don't know how rare this stuff is but here goes: 67 cst big window shorty with 3 speed overdrive, 71 cheyenne 402 3 speed column shift. 70 blazer 6 cyl auto with black roof, also have 72 cheyenne super with factory leaf springs. don't know how rare any of this is,maybe "uncommon" is a better word.