The ARB Selectable Air Locker for the AAM 11.5" rear axle features a heavy duty two-piece design. With minimal moving parts and a patented timed locking mechanism for ultra fast engagement, it locks both axle shafts together and ensuring maximum power transfer to the ground when conditions demand it.

When engaged, the internal differential gears are prevented from rotating independently, tying both wheels directly to the ring gear for unmatched traction. When disengaged, the differential functions as a conventional open unit while maintaining smooth handling, predictable steering, and reduced driveline wear.

Includes:

• ARB AAM 11.5" Air Locker Differential
• Dash mounted activation switch
• Solenoid valve
• Air line
• Bulkhead fitting
  Note: Air compressor required for operation (sold separately).

Specifications

• Axle Type: AAM 11.5"
• Position: Rear
• Shaft Diameter: 1.56"
• Spline Count: 30-spline
• Gear Ratio Compatibility: All ratios
• Locker Type: Selectable Air Locker
• Activation Method: Pneumatic (air-actuated)
• Material: Steel
• Color: Silver

Fitment

Tech Insight

ARBs patented timed locking mechanism provides exceptional strength while ensuring fast, positive unlocking. The steel reinforced, elastomer bonded annular seal is engineered to withstand extreme temperature swings and repeated duty cycles, making this locker ideal for vehicles that see both daily driving and aggressive off-road use. The two-piece construction minimizes internal components, maximizing reliability under heavy torque loads.