Part-Time (4WD) Front Drive Axle

^ Tools Required:
- J 33785 Pinion Bearing Installer
- J 8614-01 Pinion Flange Remover 1 33782 Pinion Oil Seal Installer

INSTALL OR CONNECT

4x4 Front Axle Components:

Axle Components - Legend:

1. Shim to the pinion gear.
- The shim must be of the proper size, as selected previously.





2. Bearing onto the pinion gear using J 33785.
3. New spacer onto the pinion gear.
4. Bearing into the case.





5. Seal into the case using J 33782.
6. Pinion gear, with bearing and spacer, to the case.
7. Deflector, flange, washer and nut.
A. Apply PST sealant, to the pinion gear threads and on both sides of the washer.





B. Tighten nut until no end play is detectable while holding the flange with J 8614-01.
C. No further tightening should be attempted until bearing preload has been checked.

Measure





1. Pinion bearing preload using an inch-pound torque wrench.
- Rotate the pinion with the torque wrench and observe the reading.
- The correct preload is 1.7-2.8 Nm (15-25 inch lbs.).

Important: If the preload torque is below specifications, continue tightening the pinion nut in small increments. Check the preload after each tightening. Each tightening increases the bearing preload by several inch pounds. If the bearing preload is exceeded, the pinion will have to be removed, and a new collapsible spacer installed.

2. Once the preload has been obtained rotate the pinion several times to make sure that the bearings have seated. Recheck the preload, and adjust if necessary.