07-13 GM Duramax Install Gauge Install Guide for Chevy Silverado and GMC Sierra Duramax

2007-2013 INSTALLATION GUIDE GMC SIERRA CHEVY SILVERADO DURAMAX 5 GlowShift.com © GlowShift Gauges, LLC | All Rights Reserved Using an Allison 1000 Transmission Test Port Adapter 1. Safely jack up the truck, if not raised already. Locate and remove the factory plug from the bell housing located next to the spin on transmission filter using a 15mm Wrench. Note: Use a drain pan to catch the fluid. 2. Wrap Teflon Tape on the male threads of the sensor. Thread the sensor into the test port extender adapter and tighten using a 14mm Wrench and 14mm Wrench. 3. Thread the test port extender with the sensor attached into the transmission test port and tighten using a 14mm Wrench. Allison 1a. Duramax Allison 1000 Test Port Adapter Finalizing the Transmission Temperature Gauge: 1. Connect the signal wire of the gauge to the white wire of the temperature sensor and connect the black wire of the sensor to any reliable grounding location. 2. Route the transmission temperature sensor signal and ground wires up to the location of the firewall where you will be passing through into the cab. Be sure not to pinch or crimp the wires and keep them away from moving parts and any direct heat sources using ZipTies. 3. Lower the vehicle if it was raised. 4. Top off the Transmission Fluid to factory specifications and check for leaks. Note: Refer to the vehicle’s repair manual as fluid check procedures may vary Allison 3. Finalizing 2. Allison 1b.