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ARB RD173 Air Locker Differential with Pneumatic Locking System

(Ford F-350 Super Duty 1999-2019, F-350 1970-97, E-350 Super Duty 1999-2010, E-350 Econoline 1975-98, E-350 Econoline Club Wagon 1977-2002 + 30 more models)

Part of: ARB Air Locker Differential with Pneumatic Locking System

Other options in this family: ARB RD234 ARB RD187 ARB RD176 ARB RD161 ARB RD204

Manufacturer

Picture for manufacturer ARB

Part Number

RD173
6 reviews
Sale Price

$1,499.95

In Stock (7)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The ARB RD173 Air Locker Differential delivers 100% traction on demand without compromising highway driving performance. This pneumatically operated locking differential features ARB's improved two-piece design with forged gears and is backed by an industry-leading five-year warranty.

Key Features:

  • Pneumatic locking system activated by 12-volt ARB Air Compressor
  • On-demand engagement and disengagement via in-cab switch control
  • Two-piece design with forged gears for enhanced durability
  • Locks both axle shafts to ring gear rotation for maximum traction
  • Functions as conventional open differential when unlocked
  • Five-year manufacturer warranty coverage

How It Works:

When activated, the Air Locker prevents differential gears from rotating independently, locking both axle shafts directly to the ring gear. This ensures both wheels maintain power and traction regardless of surface conditions. When unlocked, the differential operates normally for smooth highway driving.

Benefits:

The ARB Air Locker enables slower, more controlled off-road driving, reducing vehicle damage and environmental impact. Switchable traction control allows you to tackle challenging terrain with confidence while maintaining full street drivability.

Products specifications

Fits

Ford F-350 Super Duty 1999-2019, F-350 1970-97, E-350 Super Duty 1999-2010, E-350 Econoline 1975-98, E-350 Econoline Club Wagon 1977-2002, E-350 Club Wagon 2003-05; Dodge Ram 2500 1994-2002, Ram 3500 1994-2002, W250 1981-84 + 26 more models

Prop 65

No

Fitment Info 4

Axle: Dana 80 Full Float 11.5 in; Position: Rear; Shaft: 1.50 in; Spline: 37; Ratio: 3.73 Down

Fitment Info 8

Axle: Dana 70; Position: Front; Shaft: 1.50 in; Spline: 35; Ratio: 4.10 Down

Fitment Info 5

Axle: Dana 80 Full Float 11.5 in; Position: Rear; Shaft: 1.50 in; Spline: 37; Ratio: 4.10 Up

Fitment Info 1

Axle: Dana 70 Full Float 10.5 in; Position: Rear; Shaft: 1.50 in; Spline: 35; Ratio: 4.10 Down

Fitment Info 3

Axle: Dana 80 Full Float 11.5 in; Position: Rear; Shaft: 1.50 in; Spline: 35; Ratio: 4.10 Up

Fitment Info 2

Axle: Dana 80 Full Float 11.5 in; Position: Rear; Shaft: 1.50 in; Spline: 35; Ratio: 3.73 Down

Fitment Info 6

Axle: Dana 70; Position: Rear; Shaft: 1.50 in; Spline: 35; Ratio: 4.10 Down

Fitment Info 7

Axle: Dana 80; Position: Rear; Shaft: 1.50 in; Spline: 35; Ratio: 3.73 Down

Color

Silver

Material

Steel

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