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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Drivelines & Axles >> Axle Shafts >> Wheel Drive Shafts >> Repair Instructions >> Wheel Drive Shaft Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Wheel Drive Shaft & Hub
    GM320653Courtesy of GENERAL MOTORS CORP.
  1. Wrap shop towels around both the inner and the outer wheel drive shaft boots in order to avoid damage to the boots during removal and installation.
    2. IMPORTANT: Clean the steering knuckle and the wheel drive shaft splines and threads. These areas must be dry and free of grease, dirt, and contamination.
  2. Insert the wheel drive shaft splined shank into the knuckle hub.
    3. NOTE: Use only a genuine GM front wheel drive shaft nut. Installation of anything but an OEM front wheel drive shaft nut could cause damage to the vehicle.
  3. Install the washer (3) and the new hub nut (2) to the wheel drive shaft.

    Do not tighten the new hub nut at this time.

  4. Attach the wheel drive shaft inboard flange to the output shaft flange using the inboard flange bolts (1).
    5. Fig 2: Identifying Hub Nut
    GM1932Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  5. Insert a drift or a large screwdriver through the brake caliper into 1 of the brake rotor vanes in order to prevent the wheel drive shaft from turning.

    Tighten: 

    • Tighten the inboard flange bolts to 79 N.m (58 lb ft).
    • Tighten the hub nut to 235 N.m (173 lb ft).

  6. Remove the drift from the rotor.
    7. Fig 3: Drive Axle Center Cap
    GM673322Courtesy of GENERAL MOTORS CORP.
  7. Install the drive axle center cap, if equipped.
  8. Install the stabilizer shaft link. Refer to Stabilizer Shaft Replacement .
  9. Install the wheel and tire assembly. Refer to Tire and Wheel Removal and Installation .
  10. Lower the vehicle.
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