GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Regal (China) (CNG) 🢒 Suspension 🢒 Rear Suspension 🢒 Trailing Arm Replacement

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the ABS electrical harness.

    3. Object Number: 156949 Size: SH
  3. Disconnect the trailing arm (1) from the knuckle.
  4. Remove the trailing arm bracket-to-body bolts.
  5. Disconnect the trailing arm from the trailing arm bracket (2).
  6. Remove the trailing arm (1).

Installation Procedure

    Object Number: 156949 Size: SH
  1. Connect the trailing arm (1) to the trailing arm bracket (2).

    2. 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.

  2. Install the trailing arm bracket bolt and nut.

    3. Tighten
    Tighten the trailing arm bracket nut to 105 N·m (77 lb ft).

  3. Position the trailing arm bracket to the body.
  4. Install bracket mounting bolts.

    5. Tighten
    Tighten the trailing arm bracket to body bolts to 105 N·m (77 lb ft).

  5. Connect the trailing arm to the knuckle.

    6. Tighten
    Tighten the trailing arm to knuckle nut to 260 N·m (192 lb ft).

  6. Connect the ABS electrical harness.
  7. Lower the vehicle.