F,M,J Body Brakes fit on an A-Body?

Is this from a commercial yard?

If you're paying for parts, just grab the spindles, caliper brackets and prop valve. Leave the rotors unless they're in great shape and you're going to use them. Same for the calipers, the core charge at a lot of places is less than what they'll charge you at the yard. Worth checking into anyway, for me the core charge is about the same as the price of calipers at the yard, so unless you're going to use them its just a lot of lugging around nasty old calipers to end up even anyway.

If you can get parts off of a '77 Cordoba, HURRY, they go fast. That one will likely have 11.75" rotors, which will bolt right on if you grab the whole set up. Only thing is you have to run 15" wheels. Same deal otherwise, grab the spindles, caliper brackets and prop valve. Buy the rotors new and get a set of reconditioned stock calipers from the local parts store.