GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1224554  Size: SH
  1. Inspect it for damage, crack and abnormal wear at the ring gear part, or at the contacting surface to the clutch plate. Replace the flywheel if necessary.
  2. Measure runout of the flywheel using block and dial gage, and replace it if runout exceeds the limit (1).
  3. Specification
    The limit on runout is 0.2 mm (0.0079 in).