ARB Air Lockers

The world's premier traction aid, an ARB Air Locker(TM) keep you moving in all conditions. With the flick of the switch an Air Locker gives instant lock at any moment and its super strong design allows activation at any speed allowing you to tackle the toughest terrain. The advantage of the Air Locker lies in the pneumatically operated locking system inside the differential. When activated, the Air Locker prevents the internal differential gears from rotating and therefore prevents the axle shafts from turning independently of each other. With both wheels tied directly to the rotation of the ring gear, the vehicle maintains maximum possible traction at all times. When unlocked, it operates like a conventional open differential. An Air Locker equipped vehicle can be driven in a slower, safer and more controlled manner, greatly reducing the likelihood of vehicle damage and environmental impact.
ARB Air Locker Differential
Shaft Spline 35
Low Speed
Dana 70/80


Features and Benefits
Provides 100 percent traction on demand without affecting on-road drivability or driveline wear

Development - To ensure we meet your expectations, ARB invests heavily in research and development. Our design and engineering team utilizes the latest CAD, CAM parametric modeling systems and finite element analysis packages, and is supported by subcontract companies and universities for special projects like vibration, strength and crash testing. With an air bag equipped vehicle for example, it is essential that the vehicle?s crush rate and air bag triggering is not altered when a bull bar is installed. Our exhaustive testing programs ensure ARB bull bars meet these requirements. We also devote considerable time and resources toward to sourcing new products from around the world. IPF lights from Japan, Warn winches from the US? we scan the globe in search of equipment that meets both the demands of our customers and our own stringent quality requirements. What?s more, we?re also constantly on the lookout for new ways to improve our business practices, from distribution to customer service. ARB is a Quality Endorsed Company, and wherever we can, we endeavor to ?raise the bar?.
Easy, convenient operation allows the user to concentrate on the terrain without leaving the comfort and safety of the driver's seat

Two-piece design is ultra-durable and extremely strong ? minimal moving parts ensure maximum reliability

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

Kit includes: Air Locker differential, activation switch, solenoid valve, air line and bulkhead fitting

Air compressor required for operation (sold separately)

Air Locker Differential


Color: Silver
Fitment Info 1: Axle: Dana 70 Full Float 10.5 in
Position: Rear
Shaft: 1.50 in
Spline: 35
Ratio: 4.56 Up
Fitment Info 2: Axle: Dana 80 Full Float 11.5 in
Position: Rear
Shaft: 1.50 in
Spline: 35
Ratio: 4.10 Up
Fitment Info 3: Axle: Dana 80 Full Float 11.5 in
Position: Rear
Shaft: 1.50 in
Spline: 37
Ratio: 4.10 Up
Fitment Info 4: Axle: Dana 70
Position: Rear
Shaft: 1.50 in
Spline: 35
Ratio: 4.56 Up
Fitment Info 5: Axle: Dana 80
Position: Rear
Shaft: 1.50 in
Spline: 35
Ratio: 4.10 Up
Fitment Info 6: Axle: Dana 70
Position: Front
Shaft: 1.50 in
Spline: 35
Ratio 4.56 Up
Material: Steel
Prop 65 Yes/No: No
Title: ARB - RD172 - Air Locker Differential
Add-On: N/A