GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Disconnect the battery negative cable from the battery. Refer to Battery Cable in engine electrical.
  2. Raise the vehicle and support with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the transmission from the vehicle.
  4. • For the automatic transmission. Refer to Transmission Replacement or Transmission Replacement in Transmission/Transaxle.
    • For the manual transmission. Refer to Transmission Replacement in Transmission/Transaxle.
  5. Remove the clutch from the crankshaft if equipped. Refer to Clutch Assembly Replacement in Clutch.
  6. Remove the flywheel from the crankshaft. Refer to Engine Flywheel Replacement .
  7. Important: When removing the crankshaft rear oil seal from the cylinder block be careful not to nick the crankshaft sealing surface.


    Object Number: 290963  Size: SH
  8. Remove the crankshaft rear oil seal from the engine block. Refer to Crankshaft Rear Oil Seal Removal .

Installation Procedure

Tools Required

J 38841 Rear Oil Seal Installer

  1. Install the crankshaft rear oil seal as follows:
  2. 1.1. Lubricate the inner and outer diameter of the crankshaft rear oil seal with clean engine oil.
    1.2. Install the crankshaft rear oil seal the J 38841 .
    1.3. Use the J 38841 to install the crankshaft rear oil seal on the crankshaft.
    1.4. Remove the J 38841 from the crankshaft.
  3. Install the flywheel to the crankshaft. Refer to Engine Flywheel Replacement

  4. Object Number: 290961  Size: SH
  5. Install the clutch to the crankshaft if equipped. Refer to Clutch Assembly Replacement in Clutch.
  6. Install the transmission to the engine block.
  7. 4.1. For the automatic transmission. Refer to Transmission Replacement or Transmission Replacement in Transmission/Transaxle.
    4.2. For the manual transmission. Refer to Transmission Replacement in Transmission/Transaxle.
  8. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  9. Connect the battery negative cables to the battery. Refer to Battery Cable in Engine Electrical.