The tool is used to install the front and rear crankshaft wear sleeves and seals. It eliminates lip flare on the wear sleeve and installs the seals properly. This kit is strong, corrosion resistant and durable. Manufactured of high quality, heavy duty steel with CNC processing and zinc black electroplate, our product ensures excellent mechanical and physical properties. Used on Detroit Diesel Series 60, two cycle 92 engines. Direct replacement for J-35686-B, J-35686 and J-35686-A. Utilized on multiple oil seals and wear sleeve assemblies including 23516969, 23513578, 23513485 and 23518355.