1969 Ford F Series Trucks Differential Carrier F-100 - Yukon Dura Grip - Ford 9 in. Rear - 28 Spline - Limited Slip - 4 Spring Aggressive Setup - May Chatter - Requires Longer Trac-Loc Bolts - 1.78 in. Bearing Journals - Rear guaranteed to replace your current 1969 Ford F Series Trucks Differential Carrier F-100 - Yukon Dura Grip - Ford 9 in. Rear - 28 Spline - Limited Slip - 4 Spring Aggressive Setup - May Chatter - Requires Longer Trac-Loc Bolts - 1.78 in. Bearing Journals - Rear. 1969 Ford F Series Trucks Differential Carrier comes new OEM 1969 Ford F Series Trucks Differential Carrier aftermarket new 1969 Ford F Series Trucks Differential Carrier of remanufactured 1969 Ford F Series Trucks Differential Carrier F-100 - Yukon Dura Grip - Ford 9 in. Rear - 28 Spline - Limited Slip - 4 Spring Aggressive Setup - May Chatter - Requires Longer Trac-Loc Bolts - 1.78 in. Bearing Journals - Rear.