GM Service Manual Online
For 1990-2009 cars only

Special Tools

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

Removal Procedure


    Object Number: 1578311  Size: SH
  1. Remove the transaxle. Refer to Transmission Replacement and Transmission Replacement.
  2. Have an assistant install the J 38122-A , and a breaker bar to the crankshaft balancer in order to prevent the flywheel from rotating when loosening the flywheel bolts.
  3. Note: It may be necessary to remove the chamfer (bevel) from the edge of an 18 mm socket in order to get full engagement on the thin-headed flywheel bolts.

  4. Loosen, remove and discard the flywheel bolts.
  5. Note: Do not orientate the flywheel to the crankshaft. It is balanced separately from the engine.

  6. Remove the flywheel.
  7. Clean the thread adhesive from the flywheel bolt holes. Use a nylon bristle brush to clean the holes in the crankshaft.

Installation Procedure


    Object Number: 1578311  Size: SH
  1. Position the flywheel to the crankshaft.
  2. Install the NEW flywheel bolts until snug.
  3. Have an assistant install the J 38122-A , and a breaker bar to the crankshaft balancer in order to prevent the flywheel from rotating when tightening the flywheel bolts.
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Tighten the flywheel bolts to 53 N·m (39 lb ft) plus an additional 25 degrees using the J 45059 .
  6. Remove the J 38122-A and breaker bar.
  7. Install the transaxle. Refer to Transmission Replacement and Transmission Replacement.