Can it hook?
I still have the 8.75 in my coronet , they are fairly strong when you back brace and put the mark Williams main caps on the center section , the bad is the pro gear availability . I went a best of 9.75 @ 138 at 3800 with the 8.75 and the housing was slowly getting tweaked after time . I would weld on billet housing ends after the back brace is installed and be good to go . If you are going to buy a new rear differential then the ford 9" is the only one I would use in a race car .