Anybody use a b-body 8.75?

I already own a b-body 8 3/4 unit and am considering it for use in the duster. I've heard of guys doin it, but not much on results. Anybody out there done this? How do tires fit? Do I need to buy special backspacing rims? I apologize, as I'm sure there's a thread somewhere that resembles this already- I'll keep searching...