ARB Air Locker GM 14 Bolt 10.5 differential various components on a white background
GM 14 bolt air locker rear axle on a white background
ARB selectable locker 14 bolt differential kit on a white background.
Collection of GM 14 bolt off-road locking differential parts including a metal flange, wiring harness, and connectors on a white background.
ARB air locker performance axle build on a white background
Photo - Primary
ARB Air Locker GM 14 Bolt 10.5 differential various components on a white background
GM 14 bolt air locker rear axle on a white background
ARB selectable locker 14 bolt differential kit on a white background.
Collection of GM 14 bolt off-road locking differential parts including a metal flange, wiring harness, and connectors on a white background.
ARB air locker performance axle build on a white background
Photo - Primary

ARB GM 14-Bolt 10.5" 35-Spline Air Locker Differential

RD235

$1,399.95
/
Shipping calculated at checkout.

The ARB Air Locker Differential for GM 14-Bolt 10.5" axles provides selectable traction for custom and performance full-float 14-Bolt builds. The pneumatically actuated locker allows the differential to operate open when additional traction is not needed, then locks both axle shafts together when engaged for rock crawling, rock bouncing, racing, and other demanding off-road applications.

This 35-spline Air Locker is designed around the GM 10.5" full-float 14-Bolt platform. Performance applications require custom axle shafts, and gear selection also matters: 4.56-and-up ratios require a thick, high-offset ring and pinion gear set. A compatible ARB air compressor is required separately to operate the locker.

Includes:

  • (1) ARB Air Locker Differential
  • Dash-Mounted Activation Switch
  • Solenoid Valve
  • Air Line
  • Bulkhead Fitting

Note:

  • Performance applications require custom axle shafts and do not use OEM axle shafts.
  • 4.56-and-up gear ratios require a thick / high-offset gear set.
  • Compatible ARB air compressor required for operation and sold separately.
Specifications
Specification Details
Manufacturer ARB
Product Type Selectable Locker Differential
Axle Platform GM Full-Float 14-Bolt
Ring Gear Diameter 10.5"
Axle Position Rear
Axle Shaft Spline Count 35-Spline
Locker Type Selectable Air Locker
Activation Pneumatic
Unlocked Operation Open Differential
Gear Ratio Compatibility All Ratios; 4.56 & Up Require Thick Gear Set
Material Forged Nickel-Alloy Steel & Nodular Iron
Color Silver
Axle Shafts Custom 35-Spline Shafts Required for Performance Applications
Air Compressor Required – Sold Separately
Fitment
Axle Configuration
GM 14-Bolt 10.5" Full-Float / 35-Spline

Fitment Notes:

  • Designed for compatible GM 10.5" full-float 14-Bolt axle builds.
  • Performance applications require custom 35-spline axle shafts rather than OEM shafts.
  • 4.56-and-up ratios require a thick / high-offset ring and pinion gear set.
  • For custom off-road axle builds, verify the differential platform, spline count, and gear configuration rather than relying on the original vehicle application.
  • Verify the complete axle configuration before ordering axle shafts or ring and pinion gears.
FAQ

What axle does this ARB Air Locker fit?

This Air Locker is designed for compatible GM 10.5" full-float 14-Bolt rear axle applications using 35-spline axle shafts.

Does this locker require custom axle shafts?

Yes. The performance application described here requires custom 35-spline axle shafts and does not use OEM axle shafts.

Can I run 4.56 or deeper gears with this Air Locker?

Yes, but 4.56-and-up gear ratios require a thick, high-offset ring and pinion gear set.

Does the ARB Air Locker require a compressor?

Yes. A compatible ARB air compressor is required to pneumatically engage the locker and is sold separately.

How does the Air Locker operate when it is turned off?

When disengaged, the Air Locker operates as an open differential. When engaged, it locks the axle shafts together so both wheels rotate at the same speed.

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