GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 38122-A Harmonic Balancer Holder


    Object Number: 467429  Size: SH

    Important: It may be necessary to remove the chamfer (bevel) from the edge of an 18 mm socket in order to get full socket engagement on the thin headed flywheel bolts.

    Do not orientate the flywheel to the crankshaft. It is balanced separately from the engine.

  1. Remove the flywheel attaching bolt. Use the J 38122-A to prevent crankshaft rotation.

  2. Object Number: 412117  Size: SH
  3. Remove the flywheel, if the vehicle has a manual transmission.

  4. Object Number: 412119  Size: SH
  5. Remove the flywheel retainer for vehicles with automatic transmission.
  6. Remove the flywheel, if the vehicle has an automatic transmission.
  7. Clean the thread adhesive from the flywheel bolt holes. Use a nylon bristle brush to clean the holes in the crankshaft.

Tools Required

J 43653 Flywheel Holding Tool

Removal Procedure

    Important: It may be necessary to remove the chamfer (bevel) from the edge of an 18 mm socket in order to get full socket engagement on the thin headed flywheel bolts.

    Important: It is not necessary to orientate the flywheel to the crankshaft. It is balanced separately from the engine.

  1. Remove the flywheel attaching bolts. Use the J 43653 to prevent crankshaft rotation.

  2. Object Number: 894934  Size: SH
  3. Remove the flywheel, if the vehicle is equipped with a manual transmission.

  4. Object Number: 894936  Size: SH
  5. Remove the flywheel retainer and flywheel for vehicles equipped with an automatic transmission.
  6. Clean the thread adhesive from the flywheel bolts. Use a nylon bristle brush to clean the bolt holes in the crankshaft.