F 150 Super Crew 4WD V8-5.4L Prop SOHC VIN Z (2003)
8. Using the special tools, remove the pinion flange.
Installation
1. Lubricate the pinion flange splines.
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Use SAE 75W-140 High Performance Rear Axle Lubricant F1TZ-19580-B or equivalent meeting Ford specification WSL-M2C192-A.
2. NOTE: Disregard the scribe marks if a new pinion flange is being installed.
Align the pinion flange with the drive pinion shaft.
3. With the drive pinion in place in the axle housing, install the pinion flange using the special tool.
4. Position the new pinion nut.