ok seriously. The fronts without question are 3.5"... The rears are either 5" or 5.5" I will measure them when the car gets into ATL. If you think 5" or 5.5" is not enough with a 6 piston 14" rotor bbk then my friend go find a wide body and run crazier offsets
I did what I felt was a good offset that could be run aggressively on the stock body.