GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2004 🢒 Park Avenue 🢒 General Information 🢒 Vibration Diagnosis and Correction 🢒 Front Wheel Bearing and Hub Replacement

Tools Required

J 28733-B Front Hub Spindle Remover

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation .
  3. Clean the drive axle threads of all dirt.

    4. Object Number: 397927 Size: SH
  4. Insert a drift punch or a screwdriver into the caliper and the rotor in order to prevent the rotor from turning.
  5. Remove the drive axle nut.
  6. Remove the brake rotor. Refer to Front Brake Rotor Replacement .

    7. Object Number: 155700 Size: SH
  7. Disconnect the antilock brake system (ABS) front wheel speed sensor connector. Unclip the connector from the dust shield.

    8. Object Number: 397703 Size: SH
  8. Remove the wheel bearing/hub retaining bolts.

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

  9. Remove the wheel bearing/hub from the steering knuckle.
  10. Remove the dust shield.
  11. Use the J 28733-B in order to separate the hub and bearing from the drive axle.
  12. Clean the rust and the foreign material from the following components in order to allow proper seating of the bearing into the knuckle:
    13. • The knuckle mounting face
    • The bore
    • The chamber

Installation Procedure
  1. Remove the protective plastic cover before installation. Do not handle the knuckle or hub assembly by the ABS sensor wire.
  2. Carefully install the dust shield. Do not damage the bearing outboard lip seal, or the hub and bearing bolts.
  3. Apply a thin layer of grease to the steering knuckle bore.
  4. Install the wheel bearing/hub and dust shield to the steering knuckle.

    5. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the wheel bearing/hub retaining bolts.

    6. Tighten
    Tighten the wheel bearing/hub retaining bolts to 130 N·m (96 lb ft).


    Object Number: 397703 Size: SH
  6. Install the new drive axle nut, draw wheel bearing/hub onto the axle.

    7. Object Number: 155700 Size: SH
  7. Connect the ABS front wheel speed sensor connector. Clip the connector to the dust shield.
  8. Install the brake rotor. Refer to Front Brake Rotor Replacement .

    9. Object Number: 397927 Size: SH
  9. Insert a drift punch or a screwdriver into the caliper and rotor in order to prevent the rotor from turning.

    10. Tighten
    Tighten the drive axle nut to 160 N·m (118 lb ft).

  10. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation .
  11. Lower the vehicle.