GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 35999 Tension Scale
    • J 39758 Kingpin Holding Tool

Adjustment Procedure


    Object Number: 340429  Size: SH
  1. Check the kingpin bearing or steering knuckle preload torque. Use the J 35999 and a piece of string.
  2. Place the string (2) on the steering knuckle (1) at the point where the threads meet the spindle.
  3. Pull the knuckle from lock position to lock position. Note the scale reading, ignoring the force needed to start the rotation.
  4. Reading
    The correct reading on the J 35999 should be 10-50 N·m (8-37 lb ft). If the reading is outside of these limits, change the shim thickness.


    Object Number: 201706  Size: SH
  5. In order to change the shim, you must first remove the kingpin nut. Use the J 39758 and refer to Steering Knuckle and King Pin Replacement .

  6. Object Number: 201703  Size: LH
  7. Change the thickness of the shim (4).
  8. • In order to increase the torque, reduce the shim thickness.
    • In order to decrease the torque, increase the shim thickness.

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  9. Check the kingpin nut (2) for correct torque specification.
  10. Tighten
    Tighten the kingpin nut (2) to 550 N·m (406 lb ft).