Front Wheel Bearing Adjustment Bronco ll & Ranger (Automatic Locking Hubs)

1. Raise vehicle and install safety stands. Remove wheel lug nuts and remove wheel and tire assembly. Remove retainer washers from lug nut studs and remove automatic locking hub assembly from spindle.
2. Remove snap ring from end of spindle shaft. Remove axle shaft spacer, needle thrust bearing and bearing spacer. Being careful not to damage plastic moving cam, pull cam assembly off wheel bearing adjusting nut and remove thrust washer and needle thrust bearing from adjusting nut.
3. Loosen wheel bearing adjusting nut from spindle using a 2-3/8" hex socket. While rotating hub and rotor assembly, tighten wheel bearing adjusting nut to 35 ft. lbs. (47 N.m) to seat bearings, then back off nut 1/4 turn
   NOTE: To prevent damage to spindle threads, look into spindle keyway under adjusting nut hole and remove any portion of locking key that has been separated from cam assembly before removing adjusting nut. If this condition exists, do not re-use. Discard entire cam assembly and replace with Service Kit (1A053).
4. Loosen wheel bearing adjusting nut from spindle using a 2-3/8" hex socket. While rotating hub and rotor assembly, tighten wheel bearing adjusting nut to 35 ft. lbs. (47 N.m) to seat bearings, then back off nut 1/4 turn
5. Retighten adjusting nut to 16 INCH lbs. (1.8 N.m) using a torque wrench. Align closest hole in wheel bearing adjusting nut with center of spindle keyway slot. Advance nut to next hole if required.
   CAUTION: Extreme care must be taken when aligning spindle nut adjustment hole with center of spindle keyway slot to prevent damage to cam assembly locking key.
6. Install lock nut needle bearing and thrust washer in order of removal. Push or press cam assembly onto lock nut by lining up key in fixed cam with spindle keyway. Install bearing thrust washer, needle thrust bearing and axle shaft spacer.
7. Clip snap ring onto end of spindle. Install automatic locking hub assembly over spindle by lining up 3 legs on hub assembly with 3 pockets in cam assembly. Install retainer washers. Install wheel and tire assembly. Install and tighten lug nuts. Final end play of wheel on spindle should be .001-.003" (.02-.08 mm).

Fig 1: Exploded View of Bronco ll & Ranger Auto. Locking Hub