Grand Marquis V8-4.6L SOHC VIN W (2005)
Use the special tool to hold the pinion flange while removing the drive pinion nut.
6. Index-mark the pinion flange and the drive pinion stem for correct alignment during installation.
7. Using the special tool, remove the pinion flange.
8. Using a screwdriver, force up the rear axle drive pinion seal metal flange.