GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42067 Rear Main Seal Installer

Removal Procedure

  1. Remove the transmission. Refer to Transmission Replacement in Automatic Transmission - 4T40-E/4T45-E.
  2. Remove the flywheel.

  3. Object Number: 406046  Size: SH

    Important: Make sure not to damage the outside diameter of the crankshaft or chamber with any tool.

  4. 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. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 412119  Size: SH
  3. Install the flywheel.
  4. Tighten
    Tighten the flywheel bolts to 53 N·m (39 lb ft) plus 25  degrees.

  5. Install the transmission. Refer to Transmission Replacement in Automatic Transmission - 4T40-E/4T45-E.