by LITEMUP (Von) » 03 Mar 2003 5:02
Application-------Width----Pad Centers
A-Body-----------55.6-------43.0
B-Body '65-'70----59.2-------44.0
B-Body '71-up-----62.0-------47.3
E-Body------------60.7-------46.0
You have to remember that A-Body through '72 had the small 4-inch bolt circle and shorter axleshaft offset for narrower A-body brakes. I have heard that you can drill the wider holes in the same small bolt axle so you can use your wheels.
I used the early B-Body housing and happy with it. However, if I had the money I would make the A-body axle fit in my car with different offset wheels and mini tub my car. I would love to do that.