GM Service Manual Online
For 1990-2009 cars only

Notice: Never preload the front wheel bearings. Damage can result by the steady load on the roller ends that comes from preloading.

Important: 

   • Adjust the front wheel bearings correctly in order to ensure the front suspension functions properly.
   • The bearings must be a slip fit on the spindle.
   •  Lubricate the bearings in order to ensure that the roller bearings will roll and not skid.
   • The spindle nut must have a free-running fit on the spindle threads.

  1. Raise the vehicle. Support the vehicle with safety stands.
  2. Remove the wheel cover, if used.

  3. Object Number: 130890  Size: SH
  4. Remove the dust cap from the hub.
  5. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  6. Remove the cotter pin.
  7. Tighten
    Tighten the hub/rotor bearing nut to 16 N·m (12 lb ft), while turning the wheel forward by hand. This will seat the bearings.

    Important: Do not back the nut off more than ¼ turn.

  8. Adjust the nut to so that it is just loose. Then, back the nut off until the hole in the spindle aligns with a slot in the nut.
  9. Install a new cotter pin.
  10. 6.1. Make sure the cotter pin ends do not interfere with the cap.
    6.2. Bend the ends of the cotter pin against the nut.
    6.3. Cut off any extra pin length.

    Object Number: 156959  Size: SH
  11. Measure the endplay in the hub/rotor assembly. Proper endplay is 0.03-0.20 mm (0.001-0.008 in).
  12. Install the cap to the hub/rotor.
  13. Install the wheel cover, if used.
  14. Remove the safety stands.
  15. Lower the vehicle.