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 GM 14-Bolt Selectable Air Locker - 10.5" Full Float, 30 Spline

ARBRD114

$1,399.95
/
Shipping calculated at checkout.

The ARB Air Locker for the GM 14-Bolt 10.5" Full Float axle 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. 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.

Includes:

  • ARB GM 14-Bolt 10.5" Air Locker Differential
  • Activation Switch
  • Solenoid Valve
  • Air Line
  • Bulkhead Fitting
  • Note: Air compressor required for operation (sold separately).
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
Make Model Year Range
Chevrolet Avalanche 2500 2002–2005
Chevrolet C20 1985–1986
Chevrolet C20 Suburban 1985–1986
Chevrolet C2500 1989–2000
Chevrolet C2500 Suburban 1992–1999
Chevrolet C3500 1989–2000
Chevrolet G20 1985–1988
Chevrolet G30 1985–1999
Chevrolet K20 1985–1986
Chevrolet K20 Suburban 1985–1986
Chevrolet K2500 1989–2000
Chevrolet K2500 Suburban 1992–1999
Chevrolet K3500 1989–2000
Chevrolet P30 1997–1999
GMC C3500 1989–2000
GMC G2500 1989–1995
GMC K2500 1989–2000
GMC Yukon XL 2500 2000–2013
  • 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.

Installation Guide
Back to Selectable Air Lockers