The world's premier traction aid, the ARB Air Locker(TM), supports driving in all conditions. You can engage the lock instantly with the flip of a switch, and its ultra-durable design allows for operation at any speed, enabling you to tackle the toughest terrain. The advantage of the Air Locker lies in its pneumatic locking system inside the differential. When activated, it prevents the internal differential gears from rotating, which in turn stops the axle shafts from turning independently of each other. Since both wheels are directly linked to the rotation of the ring gear, you can maintain maximum traction at all times. When unlocked, it operates like a conventional open differential. Vehicles equipped with an Air Locker can travel more slowly, safely, and with greater control, significantly reducing both vehicle damage and environmental impact.
