GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42640 Steering Column Anti-Rotation Pin

Removal Procedure

    Notice: The wheels of the vehicle must be straight ahead and the steering column in the LOCK position before disconnecting the steering column or intermediate shaft from the steering gear. Failure to do so will cause the SIR coil assembly to become uncentered, which may cause damage to the coil assembly.

  1. Set the front wheels in the straight-ahead position.

  2. Object Number: 333146  Size: SH
  3. Install the J 42640 in the steering column lower access hole.
  4. Mark the relationship of the intermediate shaft components in order to assure proper installation.
  5. 3.1. Mark the relationship of the upper intermediate shaft to the lower intermediate shaft.
    3.2. Mark the relationship of the lower shaft coupler to the steering gear input shaft.
  6. For vehicles equipped with a 6.6L Diesel, remove the left charge air cooler hose. Refer to Charged Air Cooler Hoses/Pipes Replacement in Engine Mechanical - 6.6L.

  7. Object Number: 389603  Size: SH
  8. Remove the bolt from the upper to lower shaft connection.
  9. Remove the bolt from the lower shaft coupler.
  10. Remove the intermediate shaft assembly.
  11. Slide the shaft towards the dash in order to get the lower shaft coupler clear of the steering gear input shaft.

  12. Slide the intermediate shaft down out of the upper shaft.

Installation Procedure


    Object Number: 362505  Size: SH
  1. Install the upper end of the intermediate shaft into the upper shaft.
  2. Install the lower end of the intermediate shaft coupler.
  3. 2.1. If you are reinstalling the same shaft, align the marks made during the removal procedure.
    2.2. Install the lower end of the intermediate shaft coupler onto the steering gear worm shaft.
  4. Install the bolt to the lower shaft coupler.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the bolt to the upper end of the shaft.
  7. Tighten

        • Tighten the upper bolt to 47 N·m (35 lb ft).
        • Tighten the coupler pinch bolt to 50 N·m (37 lb ft).
  8. For vehicles equipped with a 6.6L Diesel, install the left charge air cooler hose. Refer to Charged Air Cooler Hoses/Pipes Replacement in Engine Mechanical - 6.6L.

  9. Object Number: 333146  Size: SH
  10. Remove the J 42640 from the steering column lower access hole.