A body 8 3/4 or B body 8 3/4 ?

The axles would have been the same no matter what brakes you had.The backing plates make up the differance of what size brakes you have.I put 10 1/2 2" wide E body rear brakes on my barracuda The only thing that was changed was the backing plates.Of course new brakes and drums Mark
It's been awhile but I put 11" B body rear brakes on my Demon and ordered axles from Moser and all they wanted to know was what brakes I was using and they made the axles accordingly