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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1035 (Automatic Transmission - ALLISON - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Off-Vehicle Repair Information >> Low and Reverse Clutch Backing Plate Inspection

Low and Reverse Clutch Backing Plate Inspection

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Locating Low And Reverse Clutch Backing Plate Inspection Areas
    GM1217716Courtesy of GENERAL MOTORS CORP.
    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.

    Specification:  The low and reverse clutch backing plate minimum thickness is 17.900 mm (0.7047 in).

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