Ford F150 Pickup. Manual — part 516

Fig. 45: Removing Rear Axle Pinion Flange
Courtesy of FORD MOTOR CO.

Installation

1. Lubricate the rear axle pinion flange splines with rear axle lubricant.

NOTE:

Disregard the scribe marks if a new rear axle pinion flange is being
installed.

2003 Ford Pickup F150

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

Fig. 46: Aligning Rear Axle Pinion Flange With Drive Pinion Shaft
Courtesy of FORD MOTOR CO.

2. Align the rear axle pinion flange with the drive pinion shaft.

3. With the drive pinion in place in the rear axle housing (4010), install the rear axle pinion flange using the

special tool.

2003 Ford Pickup F150

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

Fig. 47: Installing Rear Axle Pinion Flange
Courtesy of FORD MOTOR CO.

4. Position the new pinion nut.

2003 Ford Pickup F150

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

Fig. 48: Installing Pinion Nut
Courtesy of FORD MOTOR CO.

CAUTION: Under no circumstances is the pinion nut to be backed off to reduce

preload. If reduced preload is required, a new collapsible spacer and
pinion nut must be installed.

NOTE:

Remove the suitable pinion flange holding tool while taking preload
readings.

2003 Ford Pickup F150

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