The ARB Air Locker Differential for Dana 44 axles is the worlds premier selectable traction aid, providing 100% locking traction on demand while maintaining smooth, predictable drivability when disengaged. Designed to allow drivers to move slower, safer, and with greater control while reducing drivetrain shock, vehicle damage, and environmental impact.

The Air Locker uses a pneumatically operated locking system inside the differential. When engaged, the internal gears are fully locked together, preventing independent axle shaft rotation and forcing both wheels to turn at the same speed. This delivers maximum traction in rocks, mud, snow, and uneven terrain. When disengaged, it functions like a conventional open differential.

Kit Includes:

• ARB Dana 44 Air Locker Differential
• Dash activation switch
• Solenoid valve
• Air line
• Bulkhead fitting
• Note: Air compressor required for operation (sold separately).

Specifications

• Differential Type: Selectable Air Locker
• Axle Type: Dana 44
• Spline Count: 30
• Shaft Diameter (Rear): 1.31 in
• Material: Steel
• Color: Silver
• Design: Two-piece carrier
• Activation: Pneumatic (air-operated)

Fitment

Important Fitment & Compatibility Notes:

• Aftermarket Dana 44 standard-cut ring & pinion ratios of 4.56 & up require RD116 (Excludes Jeep JK)
• Thick-cut Dana 44 ring & pinion sets (all ratios) require RD117 (Excludes Jeep JK)
• Newer OEM Chrysler 8.25 and Dana 44 ring gears may use 3/8", 7/16", or 1/2" ring gear bolts
• Air Locker flange holes must be drilled or reamed to accept 7/16" or 1/2" ring gear bolts
• Always verify ring gear bolt size, cut type, and gear ratio before ordering.

Tech Insight

ARBs patented timed locking mechanism enables ultra-fast disengagement under load, minimizing driveline stress while maintaining exceptional strength. The two-piece carrier design reduces internal moving parts for increased reliability, and the steel-reinforced, elastomer-bonded annular seal is engineered to perform in extreme temperatures and harsh off-road environments.

Selectable control means traction only when you need itno compromise on-road, maximum confidence off-road.