The First 2-Speed Gearbox Designed with a Drop Leg Jack in Mind. BULLDOG's 2-speed 12,000 lbs. support capacity square jack makes cranking easier when fully loaded and faster when unloaded. In low gear, the ratio delivers full lifting power at a super-smooth, easy-lifting 27 turns per 1" (planetary) and 29 turns per 1" (traditional) of travel. In high gear, the cranking ratio is a speedy 9 turns per 1" of travel, the fastest in its weight class. State of the art 2 speed gearbox with power and speed for the most effective and efficient jack at all loadsDesigned for today's standard agricultural, construction and industrial trailer applications.User friendly design makes operation smooth and easyEngineered alloys for enhaced strength, stability and sideload capabilityPlanetary gearbox fits within the width profile of the jack's outer tube, eliminating the need for spacers

• Square Jack