Recently I was asked exactly how much pressure should or can be run to an ARB Air Locking Differential. I was directed to this article from my friends at ARB-USA and I found it to be very enlightening. Scott axleboy@axleboy.com  From ARB:

Buy one (1) qualifying ARB Air Locking differential and receive one (1) matching ARB Differential Cover absolutely FREE!*

*Promotion is only available for the following ARB Air Locker models: RDRD100, RD101, RD102, RD103, RD105, RD109, RD113, RD116, RD117, RD125, RD147 & RD157.

How to Get Free ARB Differential Covers!
Order one qualifying ARB air locking differential from Axle Boy Offroad Performance and ARB just mention the winter 2011 Promo!

Contact
craig@axleboy.com
www.axleboy.com
877-AXLEBOY

AMC Model 20 ARB air locking differential RD186

FEATURES:

Superceding the RD60, the RD186 incorporates the latest 2-piece Airlocker design features including:
• Patented 'timed' locking mechanism offers high strength and ultra fast unlocking.
• Steel reinforced, elastomer bonded annular seal, designed to handle the most extreme climatic temperatures on earth.
• Patented 2-piece design offers a range of interchangeable side gears (sold separately) to integrate with non- standard axle shaft splines.
• Comprehensive photo illustrated installation and service guides.

New ARB Air Lockers
Over the last few months ARB’s team of Air Locker
engineers has been hard at work developing new
product to further expand the already large range
available.
An ARB Air Locker is a driver controlled replacement
locking differential that essentially ‘locks’ the two front
or two rear wheels so they don’t turn independently.
When a standard vehicle experiences a loss of
traction, power is automatically sent to the path of least
resistance (usually the wheel with little or no traction),
resulting in no forward movement. However, when an

It is a common misconception that 4x4 and traction go hand in hand. The truth is that most 4x4 vehicles send power to the wheels with the least amount of traction once difficult terrain is encountered. The problem is simple – when one of your vehicle’s wheels loses traction, your highway minded factory differential directs all of your vehicle’s power to those spinning wheels. On road, the standard differential allows each of your wheels to turn independently thus eliminating any binding during turns.