GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42067 Rear Main Seal Installer

Removal Procedure


    Object Number: 1578312  Size: SH
  1. Remove the flywheel. Refer to Engine Replacement.
  2. Important: Do not damage the outside diameter of the crankshaft or chamber with any tool.

  3. Pry out the crankshaft rear oil seal using a flat-bladed tool.

Installation Procedure


    Object Number: 412495  Size: SH
  1. Using the J 42067 , install a NEW crankshaft real oil seal.
  2. Install the flywheel. Refer to Engine Replacement.