GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable.
  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. Refer to the following procedures:

    •  Transmission Replacement (Automatic).
    •  Transmission Replacement (Manual).

    Object Number: 34060  Size: SH
  5. Remove the clutch from the crankshaft, if equipped. Refer to Clutch Assembly Replacement .

  6. Object Number: 64987  Size: SH
  7. Remove the flywheel from the crankshaft. Refer to Engine Flywheel Replacement .
  8. Important: When removing the crankshaft rear oil seal from the cylinder block do not nick the crankshaft sealing surface.

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

Installation Procedure

Tools Required

J 38841 Crankshaft Rear Oil Seal Installer


    Object Number: 290961  Size: SH
  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. Position J 38841 against the crankshaft. Thread the attaching screws into the tapped holes in the crankshaft.
    1.4. Tighten the screws securely with a screwdriver in order to ensure that the seal is installed squarely over the crankshaft.
    1.5. Turn the handle until the handle bottoms.
    1.6. Remove the J 38841 from the crankshaft.

    Object Number: 64987  Size: SH
  3. Install the flywheel to the crankshaft. Refer to Engine Flywheel Replacement .

  4. Object Number: 34060  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. Refer to the following procedures:

    •  Transmission Replacement (Automatic).
    •  Transmission Replacement (Manual).
  8. Remove the safety stands and lower the vehicle.
  9. Connect the battery negative cables to the battery.