Expedition 4WD V8-4.6L SOHC VIN W (1999)
11. NOTE: Prelubricate both sides of the differential pinion thrust washers with Motorcraft Synthetic Axle Lubricant F1TZ-19580-E or equivalent
meeting Ford specification WSL-M2C192-A.
NOTE: Make sure the differential pinion gears are 180 degrees apart so they will align correctly with the pinion shaft bore.
Position the differential pinion gears and differential pinion thrust washers in the window of the differential case so they mesh with the differential
side gear teeth.
12. WARNING: Keep fingers/hands away from pinion gears when rotating the differential case with the differential rotating tool.
NOTE: It will probably be necessary to loosen or tighten the forcing screw to allow the differential pinion gears and differential side gears to
rotate.
Insert the special tool into the pinion shaft bore, and turn the differential case. This will cause the differential pinion gears to engage the
differential side gears and "walk" into the differential case. Rotate the differential case until the pinion mating shaft holes are lined up exactly with
the holes in the differential pinion gears
13. Loosen the forcing screw, and remove the step plate and nut from the side gear bores. Install the differential pinion shaft in the differential case.
^
Install a new differential pinion shaft lock bolt finger-tight.
