I have a Buick 10 bolt that came out of a 67 GS 400 4speed car. Changed the gears,posi unit,and bearings some time ago. The current set up is 3.90 with an Auburn cone unit, it's still assembled with brakes, drums and long studs. The Auburn is tired, but thats your call. Can bring to Cecil or pick up in Md, 21082. $750.00 Dave
