An accurate 8 3/4" rear axle width list

A-BODY
  • '66-'72= 52 5/8”
    • BBP 7.25/8.25 = 51.5”
I have a question about Dr. Diff axles. I just ordered a set for stock A body housing length. I chose the BBP so am I to assume that I should have my housing narrowed to 51.5? Nevermind, I just realized that is for 7.25 and 8.25. The 8.25 through me off. I need my housing narrowed to 52 5/8. What a great place for info!! Thanks.