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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 777 (Front Suspension System) >> Repair Instructions >> Wheel Hub, Bearing, and Seal Replacement (4WD) >> Removal Procedure

Removal Procedure

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CAUTION: 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 BRAKE ROTOR .
  4. Remove the wheel speed sensor and brake hose mounting bracket bolt from the steering knuckle.
    Fig 1: Removing Brake Hose Mounting Bracket
    G01662716Courtesy of GENERAL MOTORS CORP.
  5. Remove the wheel driveshaft nut retaining cover.
  6. Remove the wheel driveshaft assembly retaining nut (2) and washer (3) from the wheel driveshaft assembly.

    Disengage the wheel driveshaft from the wheel hub and bearing.

    Fig 2: Removing Wheel Driveshaft Assembly
    G01662717Courtesy of GENERAL MOTORS CORP.
  7. Remove the wheel hub and the 15-series bearing mounting bolts (4).
    Fig 3: Removing Wheel Hub (15 Series)
    G01662718Courtesy of GENERAL MOTORS CORP.
  8. Remove the wheel hub and bearing (4) mounting bolts, 25/35 series.
  9. Remove the wheel hub and bearing and splash shield from the vehicle.
  10. Remove the O-ring seal from the steering knuckle bore, 25/35 series.
  11. Remove the wheel speed sensor mounting bolt (5).
    12. Fig 4: Removing Wheel Hub (25/35 Series)
    G01662719Courtesy of GENERAL MOTORS CORP.
  12. Clean and inspect the O-ring seal, 25/35 series.
  13. Replace the seal if the following conditions exist:
    • Nicks
    • Cuts
    • Dry or brittle
    • Compression set
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