GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 42067 Rear Crankshaft Seal Installer
    • J 43653 Flywheel Holding Tool

Removal Procedure


    Object Number: 894934  Size: SH
  1. Remove the transaxle assembly. Refer to Transmission Replacement in Automatic Transmission - VT25E, or Transmission Replacement in Manual Transmission - Getrag 5 Speed.
  2. If servicing the rear main seal on a manual transaxle vehicle, refer to Clutch Assembly Replacement in Clutch.
  3. Install the J 43653 .

  4. Object Number: 894936  Size: SH
  5. Remove the flexplate/flywheel bolts and discard.
  6. Remove the flexplate/flywheel assembly.
  7. Clean the thread adhesive from the flywheel bolts. Use a nylon bristle to clean the bolt holes from the crankshaft.
  8. Remove the J 43653 .
  9. Important: Do not damage the block or sealing surface when removing the rear main seal.

  10. Remove the rear main seal by using a seal removal tool, or by inserting a self tapping screw and slide hammer into the seal.

Installation Procedure


    Object Number: 951859  Size: SH
  1. Make sure the rear main seal bore is free from debris. If a sealer is present, it must be removed to assure proper installation of the rear main seal.

  2. Object Number: 898892  Size: SH
  3. Lubricate the outer diameter of the rear main seal with clean engine oil.
  4. Using the J 42067 , press the new seal into the housing until fully seated. The installer will control the depth of the seal installation.

  5. Object Number: 894934  Size: SH
  6. Install the flywheel/flexplate.
  7. Notice: Refer to Fastener Notice in the Preface section.

  8. Install new flywheel bolts.
  9. Install the J 43653 .
  10. Tighten the flywheel bolts.
  11. Tighten
    Tighten the flywheel bolts L61 to 53 N·m (39 lb ft) +25 degrees.

  12. Remove the J 43653 .
  13. If the vehicle is equipped with a manual transaxle. Install the clutch assembly. Refer to Clutch Assembly Replacement in Clutch.
  14. Install the transaxle assembly. Refer to Transmission Replacement in Automatic Transmission - VT25E, or Transmission Replacement in Manual Transmission - Getrag 5 Speed.