Description Reviews Fits Ford 9” differential with Daytona pinion support 28 spline pinion gear 4.56 ratio Includes Trac Loc positraction LSD, 28 spline Coverage includes ‘65 to ’73 Mustang, ’60 to ’70 Falcon, ’67 to ’79 Cougar, 23 other models, or anything hot-rodded with a Ford 9-inch Trac Loc Positraction LSD, 28 spline 2.89” OD carrier bearing Includes positraction unit, ring and pinion gear set, and all required bearings and installation hardware