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ARB RD172 Air Locker Differential with Pneumatic Locking System

(Ford F-350 Super Duty 1999-2016, F-350 1970-97, E-350 Econoline 1975-85, 1988-98, 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 RD173

Manufacturer

Picture for manufacturer ARB

Part Number

RD172
6 reviews
Sale Price

$1,499.95

In Stock (6)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The ARB RD172 Air Locker Differential delivers 100% traction on demand without sacrificing highway driving performance. This advanced differential locking system employs a 12-volt ARB air compressor to activate and deactivate a robust pneumatic locking mechanism, providing instant traction control at the flip of a switch from the driver's seat.

Key Features:

  • Improved two-piece design with forged gears for enhanced durability
  • Pneumatically operated locking system prevents differential gears from rotating when engaged
  • Both wheels tied directly to ring gear rotation for maximum traction
  • Functions as conventional open differential when unlocked
  • 12-volt air compressor activation system included
  • Industry-leading five-year warranty coverage
  • Enables slower, more controlled off-road driving to reduce environmental impact

The ARB Air Locker's pneumatic locking mechanism prevents axle shafts from turning independently when activated, ensuring both wheels maintain power delivery in challenging terrain. When unlocked, the differential operates normally for comfortable on-road driving. This system significantly improves off-road capability while allowing safer, more controlled vehicle operation that minimizes the risk of damage and environmental disturbance.

Products specifications

Fits

Ford F-350 Super Duty 1999-2016, F-350 1970-97, E-350 Econoline 1975-85, 1988-98, E-350 Econoline Club Wagon 1977-2002, E-350 Club Wagon 2003-05; Dodge Ram 2500 1994-2002, Ram 3500 1994-2002, D150 1988-93, W250 1981-84, 1988-93 + 25 more models

Prop 65

No

Fitment Info 5

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

Fitment Info 1

Axle: Dana 70 Full Float 10.5 in; Position: Rear; Shaft: 1.50 in; Spline: 35; Ratio: 4.56 Up

Fitment Info 4

Axle: Dana 70; Position: Rear; Shaft: 1.50 in; Spline: 35; Ratio: 4.56 Up

Fitment Info 3

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

Fitment Info 6

Axle: Dana 70; Position: Front; Shaft: 1.50 in; Spline: 35; Ratio 4.56 Up

Fitment Info 2

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

Material

Steel

Color

Silver

first time ive order from here and my experience was great! shipping was crazy fast. and they had the best price shipped on the 2jz arp head stud set i could find. also how on their site they actually list if they have the part in stock and how many which is very helpful. ive payed for parts to find out the vender didn't even have them available. which lead to more down time. and we all hate down time :)

Real easy to use

Best price on the internet. A lot cheaper than amazon, so I was pretty surprised.

It would be nice that when you add and item to the cart it will automatically update.

I ordered a Flowmaster cat back system for my 2012 F-150. The order arrived the day they said it would and the product came at a fair price. Well done.

Excellent customer service. Treated me very well. Issued a refund, no problem. Thank you!!

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