GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 42640 Steering Column Anti-Rotation Pin

Removal Procedure

    Warning: Refer to SIR Warning in the Preface section.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling.
  2. Caution: Once the steering column is removed from the vehicle, the column is extremely susceptible to damage. Dropping the column assembly on the end could collapse the steering shaft or loosen the plastic injections, which maintain column rigidity. Leaning on the column assembly could cause the jacket to bend or deform. Any of the above damage could impair the columns collapsible design. Do NOT hammer on the end of the shaft, because hammering could loosen the plastic injections, which maintain column rigidity. If you need to remove the steering wheel, refer to the Steering Wheel Replacement procedure in this section.

  3. Remove the left knee bolster trim panel. Refer to Driver Knee Bolster Panel Replacement.

  4. Object Number: 748882  Size: SH
  5. Remove the shift cable (1) from the steering column.

  6. Object Number: 333146  Size: SH

    Caution: 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.

  7. Install the J 42640 in the lower steering column shroud access hole.
  8. Remove the Intermediate shaft from the steering gear. Refer to Intermediate Steering Shaft Replacement.

  9. Object Number: 401496  Size: SH
  10. Remove the steering column electrical connectors.

  11. Object Number: 310953  Size: SH
  12. Remove the nuts retaining the column to the instrument panel (I/P).
  13. Remove the column from the vehicle.

Installation Procedure

    Warning: In order to ensure the intended function of the steering column in a vehicle during a crash and in order to avoid personal injury to the driver, perform the following:

       • Tighten the steering column lower fasteners before you tighten the steering column upper fasteners. Failure to do this can damage the steering column.
       • Tighten the steering column fasteners to the specified torque. Overtightening the upper steering column fasteners could affect the steering column collapse.

  1. Install the column to the vehicle.
  2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 310953  Size: SH
  3. Install the nuts retaining the column to the I/P.
  4. Tighten
    Tighten the support bolts and the nut to 25 N·m (18 lb ft).


    Object Number: 401496  Size: SH
  5. Install the steering column electrical connectors.

  6. Object Number: 333146  Size: SH
  7. Install the steering column to the intermediate shaft. Refer to Intermediate Steering Shaft Replacement.
  8. Remove the J 42640 from the lower steering column shroud access hole.

  9. Object Number: 748882  Size: SH
  10. Install the shift cable (1) to the steering column.
  11. Install the left knee bolster trim panel. Refer to Driver Knee Bolster Panel Replacement.
  12. Enable the SIR system. Refer to SIR Disabling and Enabling.