GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 STS 🢒 Suspension 🢒 Rear Suspension 🢒 Trailing Arm Replacement

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  3. Remove the automatic level control link from the upper control arm.
  4. Remove the brake pipe bracket retaining nuts.
  5. Remove the brake pipe bracket from the mounting studs.
  6. Support the lower control arm with a suitable jack.

    7. Object Number: 858496 Size: SH
  7. Remove the trailing link to knuckle nut.
  8. Remove the trailing link to knuckle bolt.
  9. Remove the jack.
  10. Support the frame with a suitable jack.
  11. Remove the front bolts from the frame.
  12. Lower the front of the rear frame.

    13. Object Number: 858493 Size: SH
  13. Remove the trailing link to frame nut.
  14. Remove the trailing link to frame bolt.

    15. Object Number: 858495 Size: SH
  15. Remove the trailing link from the vehicle.

Installation Procedure

    Object Number: 858495 Size: SH
  1. Install the trailing link to the vehicle.

    2. Object Number: 858493 Size: SH

    Note: Loosely install the trailing link before tightening.

  2. Install the trailing link to frame bolt.
  3. Install the trailing link to frame nut.
  4. Raise the frame with a suitable jack.

    5. Caution: Refer to Fastener Caution in the Preface section.

  5. Install the front bolts to the frame and tighten the bolts to 265 N·m (195 lb ft).
  6. Remove the jack.
  7. Support the lower control arm with a suitable jack for alignment of the trailing link and the knuckle.

    8. Object Number: 858496 Size: SH
  8. Install the trailing link to knuckle bolt.
  9. Install the trailing link to knuckle nut.
    10. 9.1. Tighten the trailing link to frame nut to 150 N·m (111 lb ft).
    9.2. Tighten the trailing link to knuckle mounting bolt to 170 N·m (125 lb ft).
  10. Install the brake pipe bracket from the mounting studs.
  11. Install the brake pipe bracket retaining nuts and tighten to 10 N·m (89 lb in).
  12. Install the automatic level control link to the upper control arm.
  13. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  14. Lower the vehicle.