GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1223728  Size: SH
  1. Measure the clearance between the synchronizer sleeve and the shift fork. If the clearance exceeds the limit, replace the shift fork.
  2. Clearance Between Sleeve and Shift Fork

        • Standard -- 0.2-0.6 mm (0.008-0.024 in)
        • Limit -- 1.0 mm (0.039 in)