GM Service Manual Online
For 1990-2009 cars only

Special Tools

SA9179NE Dial Indicator

For equivalent regional tools, refer to Special Tools.


    Object Number: 2002742  Size: SH
  1. Assembly the SA9179NE dial indicator in a verticle position as shown.
  2. Set the blind bolt to the hole in the next figure shown.

  3. Object Number: 2002740  Size: SH

    Note: Do not measure when the valve body is assembled in the transmission case.

  4. Measure the rod stroke applying and releasing the compressed air 392 KPa (56 psi) to hole (2) if the rod stroke is within the specifications. Rod Stroke 2.659-3.141 mm (0.105-0.124 in).

  5. Object Number: 2002744  Size: SH
  6. If the rod stroke is out of specifications, choose appropriate rod with the right length. Refer to 2-4 Band Servo Piston Pin Selection.