GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1217716  Size: SH

    Important: Perform the following measurements at 3 or more locations.

  1. Measure the thickness of each low and reverse clutch backing plate (1) at dimension A.
  2. Specification
    The low and reverse clutch backing plate minimum thickness is 17.900 mm (0.7047 in).

  3. Measure the cone of the low and reverse clutch backing plate (1).
  4. Replace the low and reverse clutch backing plate (1) if any cone is present.