Equip your cargo to be Ready for the Road Ahead , with the Jost 17" A400 Series Inside Mount Landing Gear Leg, a key component to keep your cargo stable when uncoupled. With a sturdy design that fastens to the front of a fifth wheel or trailer, this retractable leg allows trucks to safely uncouple and drop their cargo. Manufactured with sturdy materials and precision engineering to bear incredible weight and extreme climates. FleetPride is your First Click in Heavy Duty .