GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2000 🢒 Firebird 🢒 General Information 🢒 General Information 🢒 Torque Arm Replacement

Removal Procedure

    Important: When raising the vehicle, support the vehicle by the frame, allowing the suspension to fully extend (unloaded).


    Object Number: 483066 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the rear axle with an adjustable jack stand.
  3. Remove the center support bearing (2) bolts from the torque arm (1), if equipped with a two-piece propeller shaft only.

    4. Object Number: 181239 Size: SH
  4. Remove the torque arm bolts (2), washers (3) and nuts (4) from the rear axle (1).

    5. Object Number: 181240 Size: SH
  5. If equipped with a automatic transmission remove the following:
    6. 5.1. Remove the torque arm inner bracket bolts (3 and 8) and nuts (5).
    5.2. Remove the torque arm outer bracket (9).
    5.3. Remove the torque arm inner bracket (10).
    5.4. Remove the torque arm (6).

    Object Number: 181241 Size: SH
  6. If equipped with a manual transmission (M49 shown, MM6 similar) remove the following:
    7. 6.1. Remove the torque arm outer bracket bolt (5), washer and nut (7).
    6.2. Remove the torque arm inner bracket bolt (6) and nut (7).
    6.3. Remove the torque arm outer bracket (3).
    6.4. Remove the torque arm inner bracket (2).
    6.5. Remove the torque arm (4).

Installation Procedure

    Object Number: 181241 Size: SH
  1. If equipped with a manual transmission (M49 shown, MM6 similar) install the following:
  2. Install the torque arm inner bracket (2) to the transmission (1).
  3. Install the torque arm outer bracket (3) to the inner bracket (2) and loosely install the torque arm outer bracket bolts (5 and 6), washer, and nuts (7).
  4. Insert the torque arm (4) into the torque arm brackets (2 and 3).

    5. 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.

  5. Tighten the torque arm outer bracket bolts (5 and 6) or nuts (7).

    6. Tighten

        • Tighten the torque arm outer bracket bolt (5) to 27 N·m (20 lb ft).
        • Tighten the torque arm outer bracket bolt (6) to 50 N·m (37 lb ft).
        • Tighten the torque arm bracket nuts (7) to 45 N·m (33 lb ft).

    Object Number: 181240 Size: SH
  6. If equipped with a automatic transmission install the following:
    7. 6.1. Install the torque arm inner bracket (10) to the transmission (4).
    6.2. Install the torque arm outer bracket (9) to the inner bracket (10) and loosely install the torque arm inner bracket bolts (3 and 8), washer, and nuts (1).
    6.3. Insert the torque arm (6) into the torque arm brackets (9 and 10).

    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.

    6.4. Tighten the torque arm inner bracket bolts (3 and 8) or nuts (1).

    Tighten

        • Tighten the torque arm inner bracket bolts (3 and 8) to 50 N·m (37 lb ft).
        • Tighten the torque arm bracket nuts (1) to 45 N·m (33 lb ft).

    Object Number: 181239 Size: SH
  7. Position the torque arm (5) onto the rear axle (1).
  8. Install the torque arm bolts (2), washers (3) and the nuts (4).
  9. Tighten the torque arm bolts (2) or nuts (4).

    10. Tighten

        • Tighten the torque arm bolt (2) to 130 N·m (96 lb ft).
        • Tighten the torque arm nuts (4) to 132 N·m (97 lb ft).

    Object Number: 483066 Size: SH
  10. Install the center support bearing (2) bolts to the torque arm (1), if equipped with a two piece propeller shaft.

    11. Tighten
    Tighten the center support bearing (2) bolts to 50 N·m (37 lb ft).

  11. Remove the adjustable jack stand.
  12. Lower the vehicle.