The world's premier traction aid, the ARB Air Locker(TM), supports your driving in any situation. Instant locking at the flip of a switch, combined with its rugged design, allows for engagement at any speed and enables you to tackle the harshest terrain. The advantage of the Air Locker lies in its pneumatically operated internal locking system. When engaged, it prevents the internal spider gears from rotating, which stops the axle shafts from turning independently. By locking both wheels directly to the rotation of the ring gear, maximum traction is maintained at all times. When disengaged, it operates just like a conventional open differential. Vehicles equipped with an Air Locker can be driven more slowly, safely, and with greater control, significantly reducing both vehicle damage and environmental impact.
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