I have one out of a 68 mustang. It's 54 from flange 2 flange. After the brakes are on it should be right about 60. BTW 9" rears dont come on fox stangs that wouldbe an 8.8. I want $250 for it. I also have the centersection, but its an n case and I'm asking 850$ If you browse the parts section I have pics posted mynumber is 9176970125-kevin