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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 824 (Power Steering System) >> Repair Instructions >> Worm Thrust Bearing Preload Adjustment - Off Vehicle (700 Gear)

Worm Thrust Bearing Preload Adjustment - Off Vehicle (700 Gear)

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Tools Required 

  1. Rotate the stub shaft back and forth in order to drain the power steering fluid.
  2. Remove the coupling shield retainer and the lock nut from the steering gear housing using J 43435  and a torque wrench.
    Fig 1: Removing Coupling Shield
    G01454960Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Turn the adjuster nut assembly (1) clockwise using J 42882  until the adjuster nut assembly (1) and the thrust support assembly (2) are firmly bottomed in the steering gear housing (3).

    Tighten 

    Tighten the adjuster nut assembly (1) to 30 N.m (22 lb ft).

    Fig 2: Turning Adjuster Nut Assembly
    G01454961Courtesy of GENERAL MOTORS CORP.
  4. Place an index mark (1) on the steering gear housing (4) parallel with one of the holes (3) in the adjuster nut assembly (2).
    Fig 3: Placing Index Mark On Steering Gear Housing
    G01454962Courtesy of GENERAL MOTORS CORP.
  5. Measure back counterclockwise 13 mm (1/2 in).
  6. Place a second mark (2) on the steering gear housing (1).
    Fig 4: Placing Mark On Steering Gear Housing
    G01454963Courtesy of GENERAL MOTORS CORP.
  7. Using J 42882  and a torque wrench, turn the adjuster nut assembly (1) counterclockwise 15-25 degrees to align the hole (2) in the adjuster nut assembly (1) with the second mark (4) on the steering gear housing (3).
    Fig 5: Turning Adjuster Nut Assembly
    G01454964Courtesy of GENERAL MOTORS CORP.
  8. Install the coupling shield retainer and the lock nut.
  9. Hold the adjuster nut assembly in position to maintain alignment of the marks.
  10. Tighten the coupling shield retainer and the lock nut using J 43435  and a torque wrench.

    Tighten 

    Tighten the coupling shield retainer and the lock nut to 109 N.m (80 lb ft).

  11. To adjust the pitman shaft, Refer to PITMAN SHAFT OVER-CENTER PRELOAD ADJUSTMENT - OFF VEHICLE (670 GEAR)  or PITMAN SHAFT OVER-CENTER PRELOAD ADJUSTMENT - OFF VEHICLE (700 GEAR)  .
    Fig 6: Tightening Coupling Shield Retainer And Lock Nut
    G01454965Courtesy of GENERAL MOTORS CORP.