F 150 2WD Pickup V8-5.4L SOHC VIN 3 (1999)
equivalent meeting Ford specification WSL-M2C192-A.
NOTE: Make sure the differential pinion gears are 180° 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 too).
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 a new differential pinion shaft in the differential case.
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Install the differential pinion shaft lock bolt finger-tight.
14. Install new differential bearings, if removed.
