Equip your cargo to be Ready for the Road Ahead , with the Jost 17" A400 Series Outside Mount Landing Gear Leg, a key component to keep your cargo stable when uncoupled. This retractable leg attaches to the front of a fifth wheel or trailer, allowing trucks to safely uncouple and drop their cargo. Engineered with robust materials and precision engineering to tolerate substantial weight and rough climates. FleetPride is your First Click in Heavy Duty .