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Worm Bearing Preload

  1. Remove steering gear from vehicle and mount in vise before performing preload adjustments. See STEERING GEAR under REMOVAL & INSTALLATION. Remove worm bearing adjuster lock nut. See Figure . Using spanner wrench, turn adjuster plug clockwise until plug is seated in housing. Torque should be about 20 ft. lbs. (27 N.m).
  2. Index mark housing even with one hole in adjuster plug. See Fig 1 . Measure back 1/2" counterclockwise from first index mark. Mark housing with second index mark. Rotate adjuster plug back counterclockwise until hole in adjuster plug aligns with second index mark on housing. Install and tighten adjuster plug lock nut. Ensure adjuster plug remains in position.
Fig 1: Measuring Worm Bearing Preload
G95E27841Courtesy of GENERAL MOTORS CORP.
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