ARB RD117 Air Locker Differential for Dana 44 30-Spline 3.73 & Down

Regular price: $1,299.95
Regular price: ~~$1,299.95~~
Sale price: $1,299.95

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Product Specification:

SKU:ARBRD117

MPN: RD117

UPC: 881348006783

Weight: 28.0 lb

Inventory: 20

Type: Differentials

Vehicle Fitment

Front and rear Dana 44 axles with 30-spline shafts and 3.73:1 & down gear ratios - Differential Upgrade

Features

ARB Air Locker differential engineered for on-demand traction enhancement in off-road conditions
Pneumatically actuated locking mechanism engages 100 % traction via a driver-mounted switch
Operates like a standard open differential when not locked for normal on-road driving
Two-piece durable design with minimal moving parts for long-term reliability
Patented timed locking system for rapid engage and disengage action
Steel-reinforced elastomer bonded seals for resistance to harsh environments
Includes activation switch, solenoid valve, airline, and bulkhead fittings for system installation
Compatible with most 4x4 and off-road vehicles using the specified axle configuration

Specifications

Part Type: Pneumatic Air Locker differential
Position: Front or rear differential unit
Axle Type: Dana 44
Spline Count: 30
Shaft Diameter: ~1.31"
Supported Gear Ratios: 3.73 & down
Operation: Pneumatic activation via onboard air system
Material: Steel differential carrier and internal components
Includes: Locker differential, activation switch, solenoid valve, airline, bulkhead fittings

Included Components

1x ARB RD117 Air Locker differential carrier
1x Driver-mounted activation switch
1x Pneumatic solenoid valve
1x Airline with bulkhead fitting kit

Product Description

The ARB RD117 Air Locker differential delivers selectable traction control for Dana 44 axles with 30-spline shafts and 3.73:1 or lower gear ratios. Designed for serious off-road enthusiasts, this locker allows you to instantly lock both wheels together at the push of a switch, providing maximum traction in challenging terrain without compromising smooth on-road drivability in its unlocked state. When unlocked, it functions as a conventional open differential to preserve normal handling and driveline function.

Pneumatic actuation via an onboard air source and a dash-mounted switch enables rapid engagement and disengagement, letting you adapt to changing terrain with confidence. The robust two-piece design with reinforced seals ensures long service life under demanding conditions, with a system package that includes the locker carrier, activation switch, pneumatic solenoid valve, and air line hardware. Ideal for 4x4 vehicles equipped with Dana 44 axles in both front and rear applications, the RD117 enhances traction, control, and off-road capability while maintaining reliable on-road performance in everyday use.