GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC C Sierra - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - Allison 🢒 Oil Pump Locating Pin Replacement

Tools Required

J 43779 Locating Pin Installer


    Object Number: 1217519 Size: SH

    Important: Do not replace the oil pump locating pin or pins unless the pin or pins are damaged.

  1. Remove the locating pin (2) from the oil pump body (3).

    2. Notice: DO NOT mar the oil pump body surface when installing the locating pin(s). Tap gently on the locating pin installer tool. Heavy or continued hammering will damage the oil pump body surface.

  2. Using J 43779  (1), install the locating pin (2) to the specified height.

    3. Specification
    The locating pin installed height measurement is 10.7-11.3 mm (0.42-0.44 in) above the oil pump body surface.