8 3/4 housing

that may not be a bad thing...
What year Abody and What year rear end assy???
67 and up A body's are wider than the earlier ones and a mid 60' early 70's
B body rear can fit by moving the spring perches inboard just a bit. The reason for
this to work is you pick up the 4.5 bolt pattern and with the correct offset
a late model 17 wheel will fit (like the 17" Mustang mag style wheels)..
Hope I got that right, someone here can advise..
Welcome to the site!!!!