GM Service Manual Online
For 1990-2009 cars only

Important: Note the position and direction of the engine flywheel before removal. The flywheel does not use a locating pin for alignment and will not initially seat against the crankshaft flange, but will be pulled onto the crankshaft by the engine flywheel bolts. This procedure requires a three stage tightening process.


    Object Number: 178458  Size: SH
  1. Remove the engine flywheel bolts.
  2. Remove the automatic transmission engine flywheel, if applicable.

  3. Object Number: 156166  Size: SH
  4. Remove the manual transmission engine flywheel, if applicable.