Ford F150 Pickup. Manual — part 515

Fig. 41: Disconnecting Driveshaft Centering Socket Yoke From Rear Axle Pinion Flange
Courtesy of FORD MOTOR CO.

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Install a torque wrench on the pinion nut, and record the torque required to maintain rotation of the
pinion through several revolutions.

2003 Ford Pickup F150

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

Fig. 42: Checking Torque Rotation
Courtesy of FORD MOTOR CO.

CAUTION: After removal of the pinion nut, discard it. A new nut must be

used for installation.

2003 Ford Pickup F150

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

Fig. 43: Removing Pinion Nut
Courtesy of FORD MOTOR CO.

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Use a suitable pinion flange holding tool to hold the rear axle pinion flange while removing the
pinion nut.

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Mark the driveshaft rear axle pinion flange in relation to the drive pinion stem to ensure correct
alignment during installation.

2003 Ford Pickup F150

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

Fig. 44: Index Marking Driveshaft Rear Axle Pinion Flange In Relation To Drive Pinion Stem
Courtesy of FORD MOTOR CO.

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Use the special tool to remove the rear axle pinion flange.

2003 Ford Pickup F150

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