GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2004 🢒 Park Avenue 🢒 Suspension 🢒 Rear Suspension 🢒 Rear Body Mount Replacement

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the exhaust and the rear of the support assembly. Use a block of wood at least 7 inches long.
  3. Remove the exhaust hangers.
  4. Remove the rear support assembly bolts and lower the support assembly and exhaust together.

    5. Object Number: 105039 Size: SH
  5. Remove the rear body mount bolts.
  6. Remove the rear body mount.

Installation Procedure

    Object Number: 105039 Size: SH

    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.

  1. Install the rear body mount and the retaining bolts ensuring that OUT is toward the outboard of the vehicle.

    2. Tighten
    Tighten the rear body mount retaining bolts to 51 N·m (38 lb ft).

  2. Raise and support the assembly and the exhaust.
  3. Install the rear body mount retaining bolts securing the support assembly to the body of the vehicle.

    4. Tighten
    Tighten the rear body mount retaining bolts to 191 N·m (141 lb ft).

  4. Install the exhaust hangers.
  5. Install the tires and the wheels. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  6. Lower the vehicle.