GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 43779 Locating Pin Installer

For equivalent regional tools, refer to Special Tools.


    Object Number: 795152  Size: SH

    Caution: DO NOT mar the main valve body surface when installing the locating pin(s). Tap gently on the locating pin installer tool. Heavy or continued hammering will damage the transmission case surface.

    Note: The main valve body has 5 locating pins that can be replaced. Do not replace a locating pin unless the pin is damaged.

  1. Remove the locating pin from the main valve body.
  2. Place a new locating pin into J 43779 installer  (3).
  3. Install J 43779 installer with the locating pin into the locating pin hole.
  4. Gently tap J 43779 installer until J 43779 installer touches the main housing surface.
  5. Specification
    The locating pin installed height is 10.7-11.3 mm (0.42-0.44 in) above the main valve body surface.