Econoline E550 V10-6.8L VIN S (2003)
8. Using the special tool, 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. Using the special tool, install the pinion flange.
4. Position the new pinion nut.