1988 Ford F Series Trucks Differential Carrier F-350 - 4WD - Yukon Dura Grip Positraction - Ford 10.25 in. - 35 Spline - Full Float - Limited Slip - Rear guaranteed to replace your current 1988 Ford F Series Trucks Differential Carrier F-350 - 4WD - Yukon Dura Grip Positraction - Ford 10.25 in. - 35 Spline - Full Float - Limited Slip - Rear. 1988 Ford F Series Trucks Differential Carrier comes new OEM 1988 Ford F Series Trucks Differential Carrier aftermarket new 1988 Ford F Series Trucks Differential Carrier of remanufactured 1988 Ford F Series Trucks Differential Carrier F-350 - 4WD - Yukon Dura Grip Positraction - Ford 10.25 in. - 35 Spline - Full Float - Limited Slip - Rear.