Item 4: Pinion Nut Assembly Note

WARNING: This page is about a different car, the 2003 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Do not, under any circumstance, loosen the nut to reduce preload. If it is necessary to reduce preload, install a new collapsible spacer and nut.

CAUTION: Remove the special tool while taking preload readings with the Nm (inch-pound) torque wrench.

Fig 1: Tightening Nut

Courtesy of FORD MOTOR CO.

Use the special tool to hold the pinion flange while tightening the nut.
- Rotate the pinion occasionally to make sure the differential pinion bearings seat correctly. Take frequent differential pinion bearing preload readings by rotating the pinion with a Nm (inch-pound) torque wrench.
Tighten the nut to set the preload.

Fig 2: Checking Preload

Courtesy of FORD MOTOR CO.