Handles a wide variety of engines, transmissions, torque converters, and rear axles from trucks, tractors, and construction machinery. The 50:1 ratio gearbox allows full rotation of mounted unit with just a turn of the crank and locks in position. Easily maneuvered when loaded. To ensure engine stability in all positions, this repair stand is equipped with a positive-crank handle locking mechanism. Twin-post design, featuring laterally adjustable, 3-position outboard support; provides an extremely stable work-holding unit. Locking rear wheels anchor stand in position. Includes 538578 universal arm assembly, quantity 4.