F 150 4WD Pickup V8-5.4L SOHC VIN 3 (1999)
20. Apply a small amount of lubricant to the washer side of the new pinion nut, and install the nut.
21. CAUTION: Do not loosen the pinion nut to reduce preload under any circumstance. If it is necessary to reduce preload, install a new
drive pinion collapsible spacer and pinion nut.
Install the special tool, and tighten the pinion nut.
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Rotate the pinion gear occasionally to make sure the pinion bearings are seating correctly. Take frequent pinion bearing torque preload
readings by rotating the pinion gear with an Nm (inch/pound) torque wrench.
22. CAUTION: Use extreme care not to damage the aluminum differential carrier housing while performing the following procedure steps.
CAUTION: The special tools are marked LH and RH. Install them accordingly.
Install the special tools.
