Ford F150 Pickup. Instruction - part 542

Fig. 148: Assembling Differential Pinion Thrust Washers 
Courtesy of FORD MOTOR CO. 

4. Engage the differential pinion gears opposite the differential side gears. 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 10.25-inch - F150 Pickup

Fig. 149: Engaging Differential Pinion Gears Opposite Differential Side Gears 
Courtesy of FORD MOTOR CO. 

5. Install the differential bearings, using the special tool. 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 10.25-inch - F150 Pickup

Fig. 150: Installing Differential Bearings 
Courtesy of FORD MOTOR CO. 

6. Rotate the differential pinion gears to align the differential pinion shaft bore. 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 10.25-inch - F150 Pickup

Fig. 151: Aligning Differential Pinion Shaft Bore 
Courtesy of FORD MOTOR CO. 

7. Insert the differential pinion shaft, and install a new differential pinion shaft lock bolt finger-tight. 

2003 Ford Pickup F150 

2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 10.25-inch - F150 Pickup