GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2004 🢒 Montana 🢒 Transmission/Transaxle 🢒 Automatic Transmission - Allison 🢒 2nd 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 2nd clutch fiber plate (1) at dimension A.

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

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

    3. Specification
    The 2nd 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 2nd clutch fiber plate (1) at dimension A.

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


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

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


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

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


    Object Number: 1217036 Size: SH
  6. Measure the thickness of the 2nd clutch spring plate (1) at dimension A.

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


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

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