GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 45166 Dial Indicator Extension Rod - 8 inch"
    • J 45200 Dial Indicator Set

    Object Number: 792763  Size: SH
  1. Install J 45166 into the fluid pump assembly bolt hole (1) indicated with the arrow.

  2. Object Number: 749585  Size: SH
  3. Assemble J 45200  (1) onto J 45166  (2) and set the dial indicator to zero on the second clutch piston.
  4. Warning: Wear safety glasses when using compressed air in order to prevent eye injury.

  5. Apply compressed air into the second clutch fluid passage (B2) and measure the piston stroke. Be sure the piston moves smoothly.
  6. If the piston stroke is out of specifications, select another second clutch backing plate.
  7. Specification
    Second clutch piston bore stroke: 1.10 - 1.50 mm (0.043 - 0.059 in)