GM Service Manual Online
For 1990-2009 cars only

Transmission Mount Replacement Trans Mount

Removal Procedure

  1. Raise the vehicle. Support the vehicle. Refer to Lifting and Jacking the Vehicle In General Information.
  2. Support the transmission with a jackstand.
  3. Remove the bolts attaching the steering gear assembly to the frame. Refer to Steering Gear Replacement In Power Streeing Systems.

  4. Object Number: 97486  Size: SH
  5. Remove the nuts from the frame to mount.

  6. Object Number: 97489  Size: SH
  7. Remove the bolts from the mount to transmission.

  8. Object Number: 97490  Size: SH
  9. Remove the mount. Use a long screwdriver or prybar. Pry up on the steering gear assembly while working the mount out from the vehicle.

Installation Procedure


    Object Number: 97490  Size: SH
  1. Install the mount into position.

  2. Object Number: 97489  Size: SH
  3. Install the bolts at the mount to transmission.

  4. Object Number: 97486  Size: SH
  5. Install the nuts at the frame to mount.
  6. 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.

    Tighten

    1. Tighten the mount to transmission bolts to 52 N·m(38 lb ft).
    2. Tighten the frame to mount nuts to 41 N·m (30 lb ft).
    3. Tighten the frame to body bolts to 112 N·m (83 lb ft).
  7. Remove the jackstand.
  8. Install the five bolts attaching the steering gear assembly to the frame. Refer to Steering Gear Replacement In Power Steering Systems.
  9. Lower the vehicle.

Transmission Mount Replacement Transaxle Mount

Removal Procedure

  1. Raise the vehicle. Support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the transmission with a jackstand.

  3. Object Number: 97304  Size: SH
  4. Remove the bolt attaching the torque strut to the torque strut bracket.

  5. Object Number: 97632  Size: SH
  6. Remove the bolts attaching the torque strut to the transmission.

  7. Object Number: 97636  Size: SH
  8. Remove the torque strut.

Installation Procedure


    Object Number: 97636  Size: SH
  1. Install the torque strut into the bracket.

  2. Object Number: 97632  Size: SH
  3. Install the bolts attaching the torque strut to the transmission.
  4. 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.

    Tighten
    Tighten the bolts to 55 N·m (41 lb ft).


    Object Number: 97304  Size: SH
  5. Install the bolt attaching the torque strut to the torque strut bracket.
  6. Remove the jackstand.
  7. Lower the vehicle.