The ARB Dana 70 & Dana 80 Low Speed Air Locker is designed for extreme off-road, towing, and heavy-duty applications, and allows instant engagement at the flip of a switch, giving you complete control in challenging terrain.

Using a pneumatically actuated locking mechanism, the Air Locker completely locks the differential when engaged, preventing axle shafts from turning independently and ensuring maximum traction. When disengaged, it functions like a standard open differential which allows safer handling and reduced driveline wear.

Includes:

• ARB Dana 70/80 Air Locker differential
• Dash activation switch
• Solenoid valve
• Air line
• Bulkhead fitting
• Air compressor required for operation (sold separately).

Specifications

• Brand: ARB
• Differential Type: Selectable locking differential
• Spline Count: 35-spline
• Shaft Diameter: 1.50"
• Material: Steel
• Finish / Color: Silver
• Activation Type: Pneumatic (air operated)
• Operating Mode: Locking when engaged, open when disengaged

Rear Axle Applications

• Dana 70 Full Float 10.5"
• 35-spline, 1.50" shaft
• Gear ratio: 4.56 & up
• Dana 80 Full Float 11.5"
• 35-spline, 1.50" shaft
• Gear ratio: 4.10 & up

Front Axle Applications

• Dana 70
• 35-spline, 1.50" shaft
• Gear ratio: 4.56 & up

Fitment

Note: For Dana 80 applications, the Air Locker flange holes must be drilled or reamed to suit 9/16" bolts. Consult your gear supplier to confirm proper application.

Tech Insight

Unlike automatic lockers, the ARB Air Locker only locks when commanded, allowing drivers to maintain steering control, reduce driveline stress, and avoid unnecessary wear. The patented timed locking system delivers rapid engagement and smooth disengagement, while the steel reinforced annular seal ensures reliable operation across extreme temperatures and conditions.

This makes the ARB Air Locker ideal for heavy duty off-road rigs, tow vehicles, rock crawlers, and expedition builds where control and durability matter.