Compatible with OTC 6710 tool, for GM below engins: 2014-2022 GMC Sierra 1500 2500 3500 V8 engine, 2015-2022 GMC Yukon V8 engine,2014-2022 Chevrolet Silverado 1500 2500 3500 V8 engine, 2014-2021 Chevrolet Corvette C7 V8 engine ext
Use this tool to verify that the camshaft fuel pump lobe is in the correct position(at the base circle position) before installing the high pressure fuel pump
After removing the fuel pump, place the tool in the hole and rotate the engine clockwise until this tool sits flush on the fuel pump mounting surface