GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 38122-A Crankshaft Balancer Holder
    • J 45059 Angle Meter

    Object Number: 412119  Size: SH
  1. Install the flywheel.
  2. Install the NEW bolts.
  3. 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.

  4. Holding the crankshaft balancer with J 38122-A , tighten the bolts evenly.
  5. Tighten
    Tighten the bolts to 53 N·m (39 lb ft), plus 25 degrees using the J 45059 .

Special Tools

    • EN-38122-A Crankshaft Balancer Holder
    • EN-43653 Flywheel Holding Tool
    • EN-45059 Angle Meter

For equivalent regional tools, refer to Special Tools.


    Object Number: 2146394  Size: SH
  1. Install the flywheel (1) for vehicles with manual transmission.
  2. Install the NEW bolts.
  3. Caution: Refer to Fastener Caution in the Preface section.

    Note: EN-43653 flywheel holding tool may be used instead of EN-38122-A holder in order to prevent crankshaft rotation.

  4. Holding the crankshaft balancer with EN-38122-A holder , tighten the bolts evenly. Tighten the bolts to 53 N·m (39 lb ft) , plus 25 degrees using the EN-45059 meter

  5. Object Number: 2148402  Size: SH
  6. Install the flywheel (1) for vehicles with automatic transmission.
  7. Install the NEW bolts.
  8. Caution: Refer to Fastener Caution in the Preface section.

    Note: EN-43653 flywheel holding tool may be used instead of EN-38122-A holder in order to prevent crankshaft rotation.

  9. Holding the crankshaft balancer with EN-38122-A holder , tighten the bolts evenly. Tighten the bolts to 53 N·m (39 lb ft) , plus 25 degrees using the EN-45059 meter