GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 42067 Rear Main Seal Installer

Removal Procedure

  1. Remove the transmission. Refer to Transmission Replacement.

  2. Object Number: 412117  Size: SH
  3. Remove the flywheel.

  4. Object Number: 406046  Size: SH

    Note: Do not damage the outside diameter of the crankshaft or chamber with any tool.

  5. Pry the crankshaft rear oil seal with a flat-bladed tool.

Installation Procedure


    Object Number: 412495  Size: SH
  1. Use the J 42067 and install the seal.
  2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 412117  Size: SH
  3. Install the flywheel and tighten to 53 N·m (39 lb ft) plus 25 degrees.
  4. Install the transmission. Refer to Transmission Replacement.