GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 37096 Flywheel Holding Tool

  1. Remove the transaxle. Refer to Automatic Transaxle On-Vehicle Service.
  2. Use the J 37096 in order to prevent crankshaft rotation.

  3. Object Number: 74285  Size: SH
  4. Remove the eight bolts attaching the flywheel to the crankshaft flange and discard them.
  5. Remove the flywheel.

Installation Procedure

Tools Required

    • J 36660-A Torque Angle Meter
    • J 37096 Flywheel Holding Tool

    Object Number: 74285  Size: SH
  1. Install the flywheel.
  2. Use J 37096 in order to prevent the crankshaft from rotating.
  3. Install the new flywheel bolts.
  4. Tighten
    Tighten the flywheel bolts to 15 N·m (11 lb ft). Use J 36660-A in order to rotate the bolts an additional 50 degrees.

    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: The crankshaft end play must be held in one direction during this check. Runout should not exceed 0.38 mm (0.015 in).

  5. Use the following procedure to measure flywheel runout:
  6. 4.1. Install a dial indicator on the engine block and check the flywheel runout at three attaching bosses.
    4.2. If the runout exceeds 0.38 mm (0.015 in), attempt to correct by tapping the high side with a mallet.
    4.3. If the condition cannot be corrected, replace the flywheel.
  7. Install the transaxle. Refer to Automatic Transaxle On-Vehicle Service.