Bulldog 183816 - The First 2-Speed Gearbox Designed with a Drop Leg Jack in Mind. BULLDOG’s 2-speed 12,000 lb. support capacity square jack makes cranking easier when fully loaded and faster when unloaded. State of the art 2 speed gearbox with power and speed for the most effective and efficient jack at all loads. Designed for today’s standard agricultural, construction and industrial trailer applications. User friendly design makes operation smooth and easy. Engineered alloys for enhanced strength, stability and sideload capability. Planetary gearbox fits within the width profile of the jack’s outer tube, eliminating the need for spacers.
When in low gear, the ratio delivers full lifting power at a supersmooth, easy-lifting 27 turns per 1" (planetary) of travel. In high gear, the cranking ratio is a speedy 9 turns per 1" of travel, the fastest in its weight class.
*Crank sold separately.