Fitment: Suitable for Detroit Diesel Series 60 engines. Alternatives to J-35652-A. Function: The tool is designed to be installed in the gearbox and mesh with a shock-absorbing hole in the camshaft drive gear. This tool is used to correctly keep the cam device fixed without damage while removing/installing the cam device fixing bolt. How to Use: 1. Insert the shoe of the camshaft drive gear torque holding tool J-35652-A, through a lightening hole of the camshaft drive gear. .