Navigator 4WD V8-5.4L DOHC VIN R (2001)
4. Using gripping pliers and a hammer, remove the rear axle drive pinion seal.
5. Remove the rear axle drive pinion shaft oil slinger.
6. Using the special tool and a soft-faced hammer, drive the pinion out of the outer pinion bearing and remove it through the rear of the differential
housing.
7. Remove the outer pinion bearing.
8. Remove the drive pinion collapsible spacer and discard it.