F 450 4WD Super Duty V8-7.3L DSL Turbo VIN F (2001)
4. CAUTION: After removal of the pinion nut, discard it. A new nut must be used for installation.
Use the Flange Holder to hold the pinion flange while removing the pinion nut.
5. Mark the pinion flange in relation to the drive pinion stem to ensure proper alignment during installation.
6. Use the 2-Jaw Puller to 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-M2Cl92-A.
2. NOTE: Disregard the scribe marks if a new pinion flange is being installed.
Align the pinion flange with the drive pinion shaft.