With Automatic Locking Hubs

THIS ARTICLE INCLUDES CHANGES MADE BY TSB #85-5-27 DATED MARCH 1985

Fig. 6 Automatic Locking Hub:

1. Raise the vehicle and install safety stands.
2. Remove the wheel and tire assembly.
3. Remove the retainer washers from the lug nut studs and remove the automatic locking hub assembly from the spindle.
4. Remove the snap ring from the end of the spindle shaft.

Axle Shaft Spacer, Thrust Bearing And Bearing Spacer:

5. Remove the axle shaft spacer, needle thrust bearing and the bearing spacer.

Wheel Bearing Adjusting Nut Assembly:

6. Being careful not to damage the plastic moving cam, pull the cam assembly off the wheel bearing adjusting nut and remove the thrust washer and needle thrust bearing from the adjusting nut.

CAUTION: To prevent damage to the spindle threads, remove adjusting nut locking key from spindle keyway located under adjusting nut prior to nut removal. A slight movement of the nut will loosen locking key so that a magnet or pointed tool can be used for removal.

Wheel Bearing Adjusting Nut.:

7. Loosen the wheel bearing adjusting nut from the spindle using a 2-3/8 inch hex socket tool.
8. While rotating the hub and rotor assembly, tighten the wheel bearing adjusting nut to 47 Nm (35 ft lb) to seat the bearings. Spin the rotor and back off the nut 1/4 turn (90°).
9. Retighten the adjusting nut to 1.8 Nm (16 in lb) using a torque wrench.
10. Align the closest two holes in the wheel bearing adjusting nut with the center of the spindle keyway slot. Advance the nut to the next hole if required.

CAUTION: To assure proper wheel retention, install adjusting nut locking key in alignment with spindle keyway and insert into lock nut holes. Double-humped portion must be fully seated and flush with lock nut.

Cam Assembly Installation:

11. Install the locknut needle bearing and thrust washer in the order of removal and push or press the cam assembly onto the locknut by lining up the key in the fixed cam with the spindle keyway.

CAUTION: Extreme care must be taken when aligning the fixed cam key with the spindle keyway to prevent damage to the fixed cam.

12. Install the bearing thrust washer, needle thrust bearing and axle shaft spacer.
13. Clip the snap ring onto the end of the spindle.

Automatic Locking Hub Installation:

14. Install the automatic locking hub assembly over the spindle by lining up the three legs in the hub assembly with three pockets in the cam assembly. Install the retainer washers.
15. Install the wheel and tire assembly. Install and tighten lugnuts to 135 Nm (100 ft lb).
16. Final end play of the wheel on the spindle should be 0.02-0.08 mm (0.001-0.003 inch).