1999 Ford F Series Trucks Axle Differential Bearing Kit F-350 Super Duty - RWD - Dana 80 - Incl. Pinion Bearings/Carrier Bearings/Crush Sleeve/Pinion Seal - Rear guaranteed to replace your current 1999 Ford F Series Trucks Axle Differential Bearing Kit F-350 Super Duty - RWD - Dana 80 - Incl. Pinion Bearings/Carrier Bearings/Crush Sleeve/Pinion Seal - Rear. 1999 Ford F Series Trucks Axle Differential Bearing Kit comes new OEM 1999 Ford F Series Trucks Axle Differential Bearing Kit aftermarket new 1999 Ford F Series Trucks Axle Differential Bearing Kit of remanufactured 1999 Ford F Series Trucks Axle Differential Bearing Kit F-350 Super Duty - RWD - Dana 80 - Incl. Pinion Bearings/Carrier Bearings/Crush Sleeve/Pinion Seal - Rear.