ARB air locker GM 14 bolt full float kit with smaller parts on a white background
GM 14 bolt 10.5 rear air locker on a white background
ARB selectable locker 14 bolt parts kit labeled on a white background
GM 14B air locker differential on a white background
exploded diagram of off-road locking differential GM 14 bolt components on a white background
ARB air locker GM 14 bolt full float kit with smaller parts on a white background
GM 14 bolt 10.5 rear air locker on a white background
ARB selectable locker 14 bolt parts kit labeled on a white background
GM 14B air locker differential on a white background
exploded diagram of off-road locking differential GM 14 bolt components on a white background

ARB Selectable Air Locker, GM 14-Bolt, 10.5" Full Float

SKU: ARBRD114

$1,399.95
/
Shipping calculated at checkout.

The ARB Air Locker for the GM 14-Bolt 10.5" Full Float axle is the world’s premier selectable locking differential, delivering 100% traction on demand without compromising on-road drivability. With the flip of a switch, the Air Locker instantly locks both axle shafts together, ensuring maximum traction in the most extreme off-road conditions.

Unlike automatic lockers, the ARB Air Locker operates as a conventional open differential when disengaged, allowing smooth handling and reduced driveline wear during normal driving. When activated, its pneumatically operated locking mechanism prevents the internal differential gears from rotating independently, forcing both wheels to turn together and maintain traction regardless of terrain.

Designed for durability and reliability, this unit features a two-piece, ultra-strong steel construction, ARB’s patented timed locking system, and a steel-reinforced bonded seal engineered to withstand extreme climates and over 20,000+ engagement cycles.

Includes:

  • ARB Air Locker Differential
  • Activation Switch
  • Solenoid Valve
  • Air Line
  • Bulkhead Fitting

    Note: Air compressor required for operation (sold separately).

               Not compatible with semi-float 14-bolt axles

Specifications
  • Axle Type: GM 14-Bolt Full Float
  • Ring Gear Size: 10.5"
  • Position: Rear
  • Spline Count: 30 Spline
  • Axle Shaft Diameter: 1.56"
  • Gear Ratio Compatibility: All Ratios
  • Material: Steel
  • Color: Silver
Fitment
  • GM Full Float 14-Bolt (14B) 10.5" Rear Axles
  • Compatible with all gear ratios
  • Not compatible with semi-float 14-bolt axles
Tech Insight

ARB’s patented timed locking mechanism ensures ultra-fast engagement and disengagement while maintaining strength under extreme torque loads. The steel-reinforced, elastomer-bonded annular seal provides unmatched reliability in hot, cold, wet, and dusty environments—making this locker a proven choice for rock crawling, racing, towing, and expedition builds.

Selectable locking allows drivers to maintain control, reduce vehicle stress, and minimize environmental impact compared to constant-locking differentials.

Technical Resources

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