AIR LOCKERS IN COMPETITION

Of the many ARB products seen in off road competition, it's the one you can't see that makes the difference - ARB Air Locker diff locks continue to dominate the world's toughest off road events.
As Paul Vanderhorst, manager of Australia's world renowned Outback Challenge, states: "Our event attracts some of the world's best off roaders, competing in incredibly well prepared 4WDs. We've seen a plethora of accessories over the years, with participants constantly striving to improve their vehicle's performance. Throughout the event's seven year history though, Air Lockers are by far the preferred traction aid... 57 vehicles competed in the 2005 Challenge for instance, 48 had Air Lockers. The top 10 place getters all had front and rear Air Lockers fitted.
AIR LOCKER WINNER OF
- Malaysian Rainforest Challenge
- Outback Challenge
- USA Extreme Rock Crawling Series
- Tuff Truck Challenge
- Korean Top Crawler Challenge
- Xtreme Winch Challenge
- Xtreme International
- Java Challenge
- New Zealand Warn Challenge
- Ateco Warn Challenge
- RCAA Series
- UROC Series
PERFORMANCE MODEL LINE
ARB Air Lockers are available for the vast majority of 4x4 vehicles from around the world. In addition, a number of high performance models are available for specialist applications such as drag racing, competition rock crawling and heavy tank-track type snow equipment.
Designing locking differentials for applications such as these presented our engineering team with some significant challenges. Not only must the locker be able to withstand more traction torque than a standard differential, but it must also tolerate massive amounts of torque handling facilitated by the substitution of custom made high alloy aftermarket axle shafts, which are cut with larger than standard diameter splines. This is particularly difficult owing to size constraints dictated by the original axle assembly. ARB met this challenge using a combination of aerospace grade materials, and a design guided by the results of high torque testing using computer simulations and destructive testing.
An ARB Air Locker suited to the 35 spline Ford nine inch differential. This is widely used in competition rock crawling and drag racing around the world.
