GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise the vehicle.

  2. Object Number: 408374  Size: SH
  3. For all engines except the 4.3L engine, remove the access cover located at the bottom of the transmission bell housing.

  4. Object Number: 334324  Size: SH
  5. For vehicles equipped with a 4.3L engine, remove the bolts securing the starter cover to the transmission.

  6. Object Number: 394457  Size: SH

    Important: Mark the alignment of the flywheel and the converter in order to retain a proper balance.

  7. Remove the flywheel to converter bolts.

Installation Procedure


    Object Number: 394457  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.

    Important: All flywheel to converter bolts should be hand started before tightening in order to ensure proper alignment, and in order to avoid cross-threading.

  1. Install the flywheel to converter bolts. Hand start the bolts.
  2. Tighten
    Tighten the bolts to 63 N·m (46 lb ft).


    Object Number: 334324  Size: SH
  3. For vehicles equipped with a 4.3L engine, install the bolts securing the starter cover to the transmission.
  4. Tighten
    Tighten the bolts to 20 N·m (15 lb ft).


    Object Number: 408374  Size: SH
  5. For all engines except the 4.3L engine, install the access cover located at the bottom of the transmission bell housing.
  6. Lower the vehicle.