I have done one, and as a matter of fact, it was to a 1976 Chevrolet K-10. To install it, jack up each side of the cab one at a time and install the lift blocks and bolts. This is a really good time to replace body bushings/mounts. For the radiator support, just find a way to lift it up once the two lower bolts are out. I can't tell you how to do that as my core support was off at the time being painted. The bed may require some friends to lift, unless tou have some way to make a floor jack work. Beyond that, just use loctite and undercoat the dog crap out of everything while you are there.
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