8 3/4 backing plates what to use?

The DANA is possible to swap over. Not a 100% on it. The 9-1/4 backing plates and all work great on my 8-1/4 rear. I went from 10 - 11 inch drums. I've done a few of these backing plate swaps and that hole described is sometimes needed to be drilled to fit on. It's an easy to do tings and it will work. Just order brake parts for the donor vehicle and then check/cross ref. if those parts are the same for your car if so optioned.