I was offered a 9" rearend out of an old Torino today for dirt cheap. It has 3:50 gears and a posi. I was wondering if anyone knows what the width of my stock rear end would be hub-hub. 1986 buick regal, 7.5". I was told to get one out of a mid '70s pickup but for 2 bills I can't pass this up even if its just for the gears/posi. Any help would be appreciated