GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 44641 Crankshaft Rear Oil Seal Remover
    • J 44642 Crankshaft Rear Oil Seal Installer

Removal Procedure


    Object Number: 660312  Size: SH
  1. Remove the engine flywheel. Refer to Engine Flywheel Replacement
  2. Install the button of J 44641 into the crankshaft.
  3. Press the jaws of J 44641 into the felt portion of the seal far enough to engage the inner lip of the seal.
  4. While holding the jaws of J 44641 tightly to the seals inner sleeve, tighten the jaw bolts.
  5. Remove the crankshaft rear oil seal using the J 44641 .

Installation Procedure


    Object Number: 663925  Size: SH
  1. Place the crankshaft rear oil seal onto the crankshaft.
  2. Note: The J 44642 must be fully secured to the crankshaft to ensure proper seal depth.

  3. Install the J 44642 to the crankshaft.
  4. Press the crankshaft rear oil seal into position using the J 44642 . The J 44642 will bottom out when the seal reaches the proper depth.
  5. Remove the J 44642 .
  6. Install the engine flywheel. Refer to Engine Flywheel Replacement.