ARB Air Locker RD234 for GM 14-bolt 10.5-inch 40-spline full-float axle — view 1
ARB Air Locker RD234 for GM 14-bolt 10.5-inch 40-spline full-float axle — view 2
ARB Air Locker RD234 for GM 14-bolt 10.5-inch 40-spline full-float axle — view 3
ARB Air Locker RD234 for GM 14-bolt 10.5-inch 40-spline full-float axle — view 4
ARB Air Locker RD234 for GM 14-bolt 10.5-inch 40-spline full-float axle — view 5
ARB Air Locker RD234 for GM 14-bolt 10.5-inch 40-spline full-float axle — view 6
ARB Air Locker RD234 for GM 14-bolt 10.5-inch 40-spline full-float axle — view 7
ARB Air Locker RD234 for GM 14-bolt 10.5-inch 40-spline full-float axle — view 8
ARB Air Locker RD234 for GM 14-bolt 10.5-inch 40-spline full-float axle — view 9
ARB Air Locker RD234 for GM 14-bolt 10.5-inch 40-spline full-float axle — view 10

ARB

ARB Air Locker — GM 14-Bolt 10.5" 40-Spline (Full-Float)

$1,399.95
Sold out
SKU: arbRD234

The ARB Air Locker RD234 delivers selectable locking for the GM 14-bolt 10.5" full-float axle in 40-spline form — the choice for trucks running upgraded, larger-spline axle shafts. Lock it 100% for the hard stuff, release it for open-differential road manners, all from a single dash switch.

The extra spline count adds shaft strength for high-torque, big-tyre and heavily geared rigs, and ARB's forged four-pinion centre is engineered to match. Air-operated engagement is instant and repeatable, giving on-demand traction without the noise, wear or handling compromises of an automatic locker.

Specifications

Attribute Detail
Differential / housing GM 14-bolt 10.5"
Axle type Full-float
Spline count 40
Engagement Air-operated, driver-selectable (100% locking)
Brand / MPN ARB / RD234

Fitment note: Air Lockers are selected by differential and spline count — confirm your GM 14-bolt 10.5" axle uses 40-spline shafts before ordering.

Requires an ARB air source (on-board compressor or CKMA/CKMTA kit) and an installation kit. Backed by ARB's limited warranty.

Prop 65 WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm. See www.P65Warnings.ca.gov.

Browse more ARB traction & differentials.

Presented by Overland Kitted

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