GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 38841 Rear Oil Seal Installer

Removal Procedure


    Object Number: 290963  Size: SH
  1. Disconnect the battery negative cable from the battery. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the engine cover from the vehicle. Refer to Engine Cover Replacement
  3. Remove the transmission from the vehicle. Refer to Transmission Replacement or Transmission Replacement in Transmission/Transaxle.
  4. Remove the flywheel from the crankshaft. Refer to Engine Flywheel Replacement .
  5. Important: When removing the crankshaft rear oil seal be careful not to nick the crankshaft sealing surface.

  6. Remove the crankshaft rear oil seal from the engine block.

Installation Procedure


    Object Number: 290961  Size: SH
  1. Install the crankshaft rear oil seal as follows:
  2. • Lubricate the inner and the outer diameter of the seal with clean engine oil.
    • Install the seal on the J 38841 .
    • Position the J 38841 against the crankshaft.
    • Thread the attaching screws into the tapped holes in the crankshaft.
    • Tighten the screws securely with a screwdriver in order to ensure that the seal is installed squarely over the crankshaft.
    • Turn the handle until it bottoms.
    • Remove the J 38841 .

    Object Number: 64554  Size: SH
  3. Install the engine flywheel to the crankshaft. Refer to Engine Flywheel Replacement .
  4. Connect the battery negative cable to the battery. Refer to Battery Negative Cable Disconnection and Connection .
  5. Install the transmission in the vehicle. Refer to Transmission Replacement or Transmission Replacement in Transmission/Transaxle.
  6. Install the engine cover in the vehicle. Refer to Engine Cover Replacement in Interior Trim.