Many people believe that a 4WD and traction go hand in hand... you can't have one without the other. The truth is most 4WDs send power to the wheels with the least amount of traction when difficult terrain is encountered. This occurs because your vehicle's standard (or open) differential is designed to allow each wheel to turn independently, thus eliminating binding during cornering.

Unfortunately, an open differential means that when one or more of your vehicle's wheels loses traction - when you're caught on slippery rocks for instance as shown in the picture - a standard  differential directs all power to those spinning wheels, and your vehicle momentum is lost.

The ARB Air Locker locking differential allows you to choose between an open diff or fully locked spool at the touch of a dash-mounted button.

How It work's

When extra traction is required, the driver activates the Air Locker via a convenient dash mounted switch. Pneumatic pressure supplied by an on board air compressor engages ARB’s patented locking mechanism within the Air Locker, thus preventing the wheels from turning independently. The Air Locker is deactivated by flicking a switch, returning the differential to normal.