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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 216 (Front Suspension System) >> Repair Instructions >> Front Wheel Hub, Bearing, and Seal Replacement (2500) >> Removal Procedure

Removal Procedure

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    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 Lifting and Jacking the Vehicle .
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation .
  3. Remove the rotor. Refer to Front Brake Rotor Replacement (1500 Series) or Front Brake Rotor Replacement (2500 Series) .
  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. IMPORTANT: Steps 6 thru 8 applies to those vehicles equipped with 4WD
  6. Remove the wheel driveshaft nut retaining cover.
    7. NOTE: Wheel drive shaft boots, seals and clamps should be protected from sharp objects any time service is performed on or near the wheel drive shaft(s). Damage to the boot(s), the seal(s) or the clamp(s) may cause lubricant to leak from the joint and lead to increased noise and possible failure of the wheel drive shaft.
  7. Wrap shop towel around the inner and outer wheel drive shaft booth.
  8. Remove the wheel driveshaft assembly retaining nut and washer from the wheel driveshaft assembly. Refer to Wheel Drive Shaft Replacement (2500) or Wheel Drive Shaft Replacement (1500)

    9. Fig 1: View Of Brake Rotor (25/35 Series)
    GM371077Courtesy of GENERAL MOTORS CORP.
  9. Remove the wheel hub and bearing mounting bolts.
  10. Remove the wheel hub and bearing and splash shield from the vehicle.
  11. Remove the O-ring seal from the steering knuckle bore.
  12. Remove the wheel speed sensor from the wheel hub and bearing.
  13. Clean and inspect the O-ring seal.
  14. Replace the seal if the following conditions exist:
    • Nicks
    • Cuts
    • Dry or brittle
    • Compression set
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