For 1990-2009 cars

## Front Wheel Bearing and Hub Replacement Wheel Hub Replacement

### Removal Procedure

#### Tools Required

• | J 34866 Front Wheel Hub Remover

• | J 2619-01 Slide Hammer

1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the tire and wheel assembly. Refer to Wheel Removal in Tires and Wheels.
3. Remove the brake caliper, the caliper carrier and the rotor. Refer to Brake Caliper Replacement in Disc Brakes.
4. Unstake and remove the drive axle nut (1) and the washer.
5. Remove the hub and the outer bearing race from the knuckle using the J 34866 and the J 2619-01 .

### Installation Procedure

1. Apply a light coat of wheel bearing grease GM P/N 1051344, or the equivalent, to the outside of the hub shaft.
2. If replacing the wheel hub, refer to Wheel Bearing for outer race removal.
3. Install the hub and outer bearing race to the steering knuckle.

3.1. | Tap in by using a hammer.

3.2. | Place a wood block on the end of the hub in order to absorb shock from the hammer and to drive the hub into the knuckle evenly.

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.

4. Install the drive axle washer and nut (1).

Tighten
Tighten the drive axle nut to 175 N·m (129 lb ft).

5. Install the stake drive axle nut using a hammer and punch.
6. Install the brake rotor, the caliper carrier and the caliper. Refer to Brake Caliper Replacement in Disc Brakes.
7. Install the tire and wheel assembly. Refer to Wheel Installation in Tires and Wheels.
8. Lower the vehicle.

## Front Wheel Bearing and Hub Replacement Wheel Bearing Replacement

### Removal Procedure

#### Tools Required

• | J 26941 Knuckle Seal Remover

• | J 2619-01 Slide Hammer

• | J 41392 Front Hub Support Inner Seal Installer

• | J 7079-2 Driver Handle

• | J 41391 Wheel Bearing Remover

• | J 22912-B Split Plate Bearing Remover

• | J 38424 Hub Race Puller Pilot

1. Remove the steering knuckle from the vehicle. Refer to Steering Knuckle Replacement .
2. Remove the inner and outer bearing oil seals using J 26941 and J 2619-01 .
3. Remove the inner race and bearing from the knuckle (1).
4. Remove one snap ring from the outer side of the steering knuckle.
5. Remove the outer bearing from the steering knuckle.
6. Remove the outer bearing race from the wheel hub. Use the J 22912-B , J 38424 and a press.
7. Support the steering knuckle. Use the J 41392 .
8. Remove the bearing assembly from the knuckle. Use the J 7079-2 and the J 41391 .
9. Inspect the inner and outer bearing oil seals for wear or deterioration. Replace the seals at the slightest signs of failure.
10. Inspect both bearings for wear, corrosion, and contamination by dirt or water. If any of these conditions exist, replace the bearing assembly.

### Installation Procedure

#### Tools Required

• | J 39722 Wheel Bearing Race/Outer Seal Installer

• | J 7079-2 Driver Handle

• | J 41392 Front Hub Support/Inner Seal Installer

• | J 36050 Wheel Hub Race Installer

1. Support the steering knuckle (1). Use the J 41392
2. Install the bearing assembly into the knuckle (1). Use the J 39722 and the J 7079-2 .
3. Install the outer bearing into the steering knuckle (1).
4. Install one snap ring to the outer side of the steering knuckle (1).
5. Install the inner bearing and race into the steering knuckle (1).
6. Install the outer bearing race (1) onto the wheel hub (2). Use the J 36050 . Use a press.
7. Apply the wheel bearing grease GM P/N 1051344 or the equivalent to the lip of the inner oil seal.
8. Align the hole in the seal with the hole in the steering knuckle for the wheel speed sensor, for ABS equipped vehicles.
9. Install the inner oil seal (1) to the inboard side of the knuckle. Use the J 41392 and J 7079-2 .
10. Install the outer oil seal (1) to the outboard side of the steering knuckle. Use the J 39722 and J 7079-2 .
11. Install the steering knuckle to the vehicle. Refer to Steering Knuckle Replacement .