Abstract: A tool is provided for installation of tire chains on the dual drive wheel assemblies having wheels with openings therein. The tool comprises a central elongate projection having a tool restraint opening at its inner extremity which is adapted for registry with two of the wheel rim openings and receives an impement extended through the wheel rim openings for establishing an interlocked relation between the wheel rims and the tool. A pair of generally U-shaped side projections are formed integrally with the central projection and extend in diverging relation and in opposed aligned directions. Each of the side projections are provided with chain positioner elements adapted to extend radially inwardly along the side wall of the respective tire. The tool is provided with a central chain connector and said side chain connectors to which the central and side chain rails of the tire chain are attached respectively.