Equip your cargo to be Ready for the Road Ahead , with the Jost 17" A440 Magnum Series Outside Mount Landing Gear Leg, a key component to keep your cargo stable when uncoupled. Thanks to its sturdy design that fastens to the front of a fifth wheel or trailer, this retractable leg allows trucks to safely drop and uncouple from their cargo. Crafted with durable materials and precision engineering to tolerate harsh conditions and incredible amounts of weight. FleetPride is your First Click in Heavy Duty .