Heavy Duty Wheel Dollies are designed for safe handling, moving and mounting of truck, tractor and heavy equipment tires and wheels. Lift arm adjusts inward and outward to handle different wheel combinations. Provides extra low access to easily position heavy wheel assemblies. Leveling screw for precise alignment. Full 7-3/4" ram lift. Three large swivel casters provide maximum flexibility of movement. Easily handles the removal, installation and transportation of single or dual truck wheel assemblies.