After Market 4.5 inch A-body 8.75 Rear Drums?

I bought a set of Yukon axles from Mancini & HD springs, I know of a couple early 70's trucks I plan to raid for the brakes! and the center sections! maybe find some 3.91s or something. I had two 71 dodges with 3.91s 15 years ago... Wish I had them now!