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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1035 (Automatic Transmission - ALLISON - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Off-Vehicle Repair Information >> Control Valve Body Location Pin Replacement >> Replacement

Control Valve Body Location Pin Replacement: Replacement

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Main Valve Body Locating Pins
    GM795152Courtesy of GENERAL MOTORS CORP.
    NOTE: 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.
    IMPORTANT: 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  (3). See Special Tools .
  3. Install J 43779  with the locating pin into the locating pin hole. See Special Tools .
  4. Gently tap J 43779  until. See Special Tools .J 43779  touches the main housing surface. See Special Tools .

    Specification:  The locating pin installed height is 10.7-11.3 mm (0.42-0.44 in) above the main valve body surface.

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