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

hey guys, I gave my right arm for an A body 8 3/4 rear end for my 69 cuda. I converted the front from a small bolt to big bolt. I was talking to a local gear head and he said that I should have went with the B body rear end. He said the width of the front with the big bolt pattern would be wider than the A body 8 3/4 and the width from the B would match.

thoughts and opinions please, thanks

"you like them spinnin tires"J.D.:burnout: