GM Service Manual Online
For 1990-2009 cars only

    Object Number: 639572  Size: SH
  1. Clean all sealing surfaces.
  2. Inspect all sealing surfaces for burrs and imperfections.
  3. Inspect the front cover for any cracks.
  4. Inspect the front cover gasket for any damage. If the gasket is damaged, replace it with a new gasket.