Ford F150 Pickup. Instruction — part 603

Fig. 31: Tightening Pinion Nut
Courtesy of FORD MOTOR CO.

6. Position the driveshaft and align the marks on the pinion flange.

2003 Ford Pickup F150

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 9.75-inch - F150 Pickup

Fig. 32: Aligning Index Marks On Driveshaft & Pinion Flange
Courtesy of FORD MOTOR CO.

CAUTION: The driveshaft centering socket yoke fits tightly on the rear axle

pinion flange pilot. To make sure that the yoke seats squarely on the
flange, tighten the bolts evenly in a cross pattern as shown.

2003 Ford Pickup F150

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 9.75-inch - F150 Pickup

Fig. 33: Driveshaft Flange Bolt Tightening Sequence
Courtesy of FORD MOTOR CO.

7. Install the driveshaft.

8. Install the brake discs and calipers. For additional information, refer to REAR BRAKE DISC and

REAR DISC BRAKE CALIPER & PADS .

DRIVE PINION SEAL

Special Tool(s)

2003 Ford Pickup F150

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 9.75-inch - F150 Pickup

Fig. 34: Identifying Special Tool(s)
Courtesy of FORD MOTOR CO.

Removal

1. Remove the pinion flange (4851). For additional information, refer to DRIVE PINION FLANGE .

2. Force up on the metal flange of the rear axle drive pinion seal (4676). Install gripping pliers and strike

with a hammer until the pinion seal is removed.

2003 Ford Pickup F150

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 9.75-inch - F150 Pickup