GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 8001 Dial Indicator Set
    • J 7057 Dial Indicator Plunger Extension

    Object Number: 31061  Size: SH
  1. Attach the J 7057 (not visible in the illustration) to the J 8001-3 .
  2. Using the J 8001-1 , mount the J 8001-3 to the transmission case through the opening in the case barrel. Place the J 7057 onto the direct clutch piston assembly.
  3. Index the J 8001-3 . Set the dial to 0.
  4. Apply 80 psi of air pressure to the direct clutch fluid passage (3rd/Reverse), in the case bottom, in order to actuate the direct clutch piston. Refer to Fluid Passages , Case Fluid Passages illustration.
  5. Measure the direct clutch piston travel.
  6. Piston Travel Specification
    The piston travel should be 1.27-4.369 mm (0.050-0.172 in).

  7. Remove the tools.