Ford 2003 Mustang Workshop Manual page 337

14. Install the outer differential pinion bearing.
15. Install the rear axle drive pinion shaft oil slinger.
16. Install the drive pinion assembly (drive pinion, shims, bearing, and the collapsible spacer) into
the differential housing bore.
17. NOTE: Coat the rear axle drive pinion seal lips with Premium Long-Life Grease XG-1-C or
equivalent meeting Ford specification ESA-M1C75-B.
Place the rear axle drive pinion seal on the special tool.