Wheel Bearing: Adjustments

Fig. 15 Exploded view of automatic locking hub assembly:

Automatic Locking Hub
1. Shift transfer lever to the ``2H'' position then move vehicle forward and rearward approximately three feet.
2. Raise and support vehicle, then remove wheel and tire assemblies.
3. Remove hub cap retaining bolts then the hub cap, Fig. 15.
4. Remove housing assembly, snap ring and shims.
5. Remove drive clutch assembly, inner cam and lock washer.
6. Using a spring scale, adjust bearing preload to 3.31 lbs.
7. Install lock washer with larger diameter of the tapered bore to the vehicle. If bolt holes in the lock plate are not aligned with the corresponding holes in the nut, reverse the lock plate. If bolt holes are still out of alignment, turn nut enough to obtain alignment. Ensure screw is fastened tightly so head is lower than surface of washer.

Fig. 16 Exploded view of manual locking hub assembly:

Manual Locking Hub

1. Shift transfer lever to the ``2H'' position and set free wheeling hub into ``FREE'' position.
2. Raise and support vehicle, then remove wheel and tire assemblies.
3. Remove housing assembly retaining bolts then the housing assembly Fig. 16.
4. Remove snap ring and shims.
5. Remove body assembly and lock washer.
6. Using a spring scale, adjust bearing preload to 3.03 lbs.
7. Install lock washer with larger diameter of the tapered bore to the outer side of vehicle. If bolt holes in the lock plate are not aligned with the corresponding holes in the nut, reverse the lock plate. If bolt holes are still out of alignment, turn nut enough to obtain alignment. Ensure screw is fastened tightly so head is lower than surface of washer.
8. Apply Loctite 515 or equivalent, to body assembly and install.
9. Install snap ring and shims, then adjust clearance between free wheeling hub body and snap ring. Clearance should be 0.01 inch. Available adjusting shim are .008, .011, .020 and .039.
10. Align and install cover assembly. Torque bolts to 8.7 ft. lbs.