GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 28733-B Front Hub Spindle Remover

  1. Raise the vehicle. Support the vehicle by the frame. Allow the control arms to hang free. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the wheel and tire assembly.
  3. Clean the drive axle threads of all dirt. Lubricate the threads.

  4. Object Number: 397927  Size: SH
  5. Remove the drive axle nut. Insert a drift punch or a screwdriver into the caliper and the rotor in order to prevent the rotor from turning.
  6. Remove the caliper bolts. Support the caliper.
  7. Remove the caliper mount bracket.
  8. Remove the rotor.

  9. Object Number: 155700  Size: SH
  10. Disconnect the ABS front wheel speed sensor connector. Unclip the connector from the dust shield.

  11. Object Number: 397703  Size: SH
  12. Remove the dust shield.
  13. Remove the hub and bearing retaining bolts.

  14. Place the transmission in PARK.

  15. Object Number: 397703  Size: SH

    Important: Replace the hub and bearing only as an assembly.

  16. Use the J 28733-B in order to separate the hub and bearing from the drive axle.
  17. Clean the rust and the foreign material from the following components in order to allow proper seating of the bearing into the knuckle:
  18. • The knuckle mounting face
    • The bore
    • The chamber

Installation Procedure

    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.

  1. Carefully install the dust shield. Do not damage the bearing outboard lip seal, or the hub and bearing bolts.
  2. Install the hub and bearing to the drive axle. Apply a thin layer of grease to the knuckle bore.
  3. Tighten
    Tighten the hub and bearing bolts to 95 N·m (70 lb ft).

  4. Remove the protective plastic cover before installation. Do not handle the knuckle or hub assembly by the ABS sensor wire.

  5. Object Number: 397703  Size: SH
  6. Install the drive axle nut, draw hub and bearing onto the axle.
  7. Place the transmission in NEUTRAL.

  8. Object Number: 155700  Size: SH
  9. Connect the ABS front wheel speed sensor connector. Clip the connector to the dust shield.
  10. Install the rotor.
  11. Install the caliper mounting bracket.
  12. Install the caliper. Tighten the caliper bolts. Refer to Front Brake Caliper Replacement in Disc Brakes.
  13. Tighten
    Tighten the caliper bolts to 51 N·m (38 lb ft).


    Object Number: 397927  Size: SH
  14. Insert a drift punch or a screwdriver into the caliper and rotor in order to prevent the rotor from turning.
  15. Tighten
    Tighten the drive axle nut to 145 N·m (107 lb ft).

  16. Install the wheel and tire.
  17. Tighten
    Tighten the wheel nuts to 140 N·m (100 lb ft).

  18. Lower the vehicle.