GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Replace the steering gear mounting bolts, the washers and the nuts every time you remove the steering gear from the vehicle. Failure to replace the bolts, the washers and the nuts may cause the steering gear to separate from the vehicle. This could cause a loss of steering control and personal injury.

  1. Position the front wheels and the steering wheel straight ahead.
  2. Tilt the cab. Refer to Cab Tilting in General Information.

  3. Object Number: 227947  Size: SH
  4. Mark the position of the steering gear input shaft and the cardan joint (1) of the lower steering shaft.
  5. Remove the cardan joint nut (4) and the washer.
  6. Remove the cardan joint bolt (2) and the washer.
  7. Gently pry the cardan joint off from the steering gear input shaft.
  8. Remove the Pitman Arm. Refer to Pitman Arm Replacement
  9. Place a container under the power steering gear in order to catch the fluid.

  10. Object Number: 227949  Size: MH
  11. Remove the power steering hoses from the steering gear.

  12. Object Number: 227951  Size: SH
  13. Remove the following components from the vehicle:
  14. 10.1. The mounting nuts (3)
    10.2. The washers
    10.3. The mounting bolts (1)
    10.4. The steering gear (2)

Installation Procedure

    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.


    Object Number: 227951  Size: SH
  1. Install the steering gear (2) onto the vehicle.
  2. Tighten
    Tighten the new power steering gear mounting nuts to 450 N·m (330 lb ft).

  3. Secure the steering gear (2) with the following components:
  4. • The new mounting nuts (3)
    • The new washers
    • The new mounting bolts (1)

    Object Number: 227949  Size: MH
  5. Install the power steering hoses onto the steering gear.