GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Denali 🢒 Transmission/Transaxle 🢒 Automatic Transmission - Allison 🢒 2-6 Clutch Plate Inspection

    Object Number: 1217166 Size: SH

    Important: 

       • Perform the following measurements at 3 or more locations.
       • Check the plates for coning on a level surface.
       • Replace any parts not meeting specifications.

  1. Measure the thickness of each 2-6 clutch fiber plate (1) at dimension A.

    2. Specification
    The 2-6 clutch fiber plate minimum thickness is 2.375 mm (0.0935 in).

  2. Measure the oil groove depth of each 2-6 clutch fiber plate (1) at dimension B.

    3. Specification
    The 2-6 clutch fiber plate oil groove minimum depth is 0.2 mm (0.0079 in).


    Object Number: 1217168 Size: SH
  3. Measure the cone of each 2-6 clutch fiber plate (1) at dimension A.

    4. Specification
    The 2-6 clutch fiber plate maximum cone is 0.225 mm (0.0089 in).


    Object Number: 1217179 Size: SH
  4. Measure the thickness of each 2-6 clutch steel plate (1) at dimension A.

    5. Specification
    The 2-6 clutch steel plate minimum thickness is 2.44 mm (0.096 in).


    Object Number: 1217181 Size: SH
  5. Measure the cone of each 2-6 clutch steel plate (1) at dimension A.

    6. Specification
    The 2-6 clutch steel plate maximum cone is 0.4 mm (0.0157 in).


    Object Number: 1660859 Size: SH
  6. Measure the thickness of the 2-6 clutch spring plate (1) at dimension A.

    7. Specification
    The 2-6 clutch spring plate minimum thickness is 3.11 mm (0.1224 in).


    Object Number: 1217711 Size: SH
  7. Measure the cone of the 2-6 clutch spring plate (1) at dimension A.

    8. Specification
    The 2-6 clutch spring plate maximum cone is 0.4 mm (0.0157 in).