2003 Hummer H2 V8-6.0L VIN U
Wheel Bearing: Service and Repair
WHEEL HUB, BEARING, AND SEAL REPLACEMENT
NOTE: Never place vehicle on the ground with the halfshaft removed or the halfshaft nut torqued improperly. Otherwise, bearing seals may become
dislodged causing premature wear and/or damage to the hub and bearing assembly.
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the tire and wheel.
3. Remove the rotor.
4. Remove the wheel speed sensor and brake hose mounting bracket bolt from the steering knuckle.
5. Disconnect the electrical connection for the wheel speed sensor.
6. Remove the wheel driveshaft nut retaining cover.
7. Remove the wheel driveshaft assembly retaining nut and washer from the wheel driveshaft assembly.
Disengage the wheel driveshaft from the wheel hub and bearing.
8. Remove the wheel hub and bearing mounting bolts.
9. Remove the wheel hub and bearing and splash shield from the vehicle.
10. Remove the O-ring seal from the steering knuckle bore.
11. Remove the wheel speed sensor from the wheel hub and bearing.
12. Clean and inspect the O-ring seal.
13. Replace the seal it the following conditions exist:
- Dry or brittle
- Compression set
1. Clean all corrosion or contaminates from the steering knuckle bore and the hub and bearing assembly.
2. Lubricate the steering knuckle bore with wheel bearing grease or the equivalent.
3. Install the O-ring to the steering knuckle.
NOTE: Refer to Fastener Notice in Service Precautions.
4. Install the wheel speed sensor to the wheel hub and bearing.
Tighten the sensor mounting bolt to 18 N.m (13 lb ft).
5. Install the wheel hub and bearing and splash shield to the vehicle.
6. Install the wheel hub and bearing mounting bolts.
Tighten the wheel hub to knuckle bolts to 180 N.m (133 lb ft).
7. Install the nut and washer retaining the wheel drive shaft assembly to the wheel hub and bearing.
Tighten the nut to 210 N.m (155 lb ft).
8. Connect the electrical connection for the wheel speed sensor.
9. Install the wheel speed sensor and brake hose mounting bracket bolt to the steering knuckle.
Tighten the bolt to 12 N.m (106 lb in).
10. Install the rotor.
11. Install the tire and wheel.
12. Lower the vehicle.