GM Service Manual Online
For 1990-2009 cars only

Flexible Coupling Shaft

Removal Procedure


    Object Number: 30689  Size: SH
  1. Set the front wheels in the straight-ahead position.
  2. Place the steering wheel in the LOCKED position (if possible).
  3. Mark the relationship of the steering coupling shaft to the steering shaft.
  4. Mark the cardan joint yoke to the miter box input shaft.
  5. Remove the lower pinch bolts and the nuts.
  6. Remove the upper pinch bolts and the nuts.

  7. Object Number: 30695  Size: SH
  8. Remove the steering coupling shaft from the miter box. You can do this by compressing the shaft up (towards the steering column) to clear the cardan joint yoke from the miter box input shaft.
  9. Slide the shaft down off the steering shaft. Tap on the yoke with a small hammer to free it from the shaft, if necessary.

Installation Procedure


    Object Number: 30695  Size: SH
  1. Install the upper end of the steering coupling shaft onto the steering shaft. Align the marks made during the removal procedure.
  2. Install the lower end of the steering coupling shaft onto the miter box input shaft.

  3. Object Number: 30689  Size: SH
  4. Install the upper pinch bolts and the nuts.
  5. Tighten
    Tighten the upper pinch bolts to 55 N·m (41 lb ft).

    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.

  6. Install the lower pinch bolts and the nuts.
  7. Tighten
    Tighten the lower pinch bolt to 55 N·m (41 lb ft).

  8. Lubricate the steering coupling shaft after tightening the pinch bolts.