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  Store > ARB Air Lockers >

GM 8.5" / 8.6" ARB Air Locker | 30 Spline (2.73 & Up)
ARB Air Locker
 
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Status: Special Order

Part Number: ARB-RD222

ARB Locker Package Deals:

Add ARB Compact Compressor [+$229.00]

 Add ARB Heavy Duty Compressor [+$321.00]

 Add ARB Pressure Test Gauge [+$104.00]

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Description Compatibility
 

ARB Model: Application: Axle Shafts: Gear Ratios:
RD222 GM 8.5" / 8.6" 30 Spline 2.73 +

This ARB Air Locker fits GM 8.5" and GM 8.6" axles with 30 spline axle shafts.


How Does The ARB Air Locker Compare To Other Lockers?

[ Jump To ARB Section of Video | Crawlpedia Differential Locker Comparison ]



(To skip ahead to the ARB Locker section of the video, go to minute 11:20 or click here.)


ARB Air Lockers use a pneumatically controlled locking mechanism to switch between an open carrier and a fully locked differential. Once installed, all it takes is the simple flip of a switch to go from an open differential that works well on the street to a spool that provides 100% traction to both wheels off-road.

Installation:
ARB lockers require no special tools or skills to install, apart from those necessary for fitting a standard differential. An ARB air compressor is the only additional thing you will need as each ARB locker comes complete with switches, solenoids, fittings, nylon air line, and even shims and bearings (if applicable).

Durability:
ARB Air Lockers are sold in over 80 countries and there are over 150,000 units currently in use worldwide in both military and civilian applications. The secret to their success and reliability is that each ARB locker is designed and tested beyond the breaking point of standard and aftermarket axles such that your axles will break before causing any damage to the air locker. 		ARB Air Locker Animation
The ARB Air Locker uses an air controlled locking mechanism to engage and disengage the unit.

Design:
Each locker is machined from a solid piece of nodular iron and encases 4 pinion gears (twice as many as most OEM differentials) with unique geometry that make them up to 30% stronger than OEM gears. The side gears that transfer force to the axle shafts are made from the highest grade nickel alloy steel and are finished with an aerospace grade surface treatment. ARB's proprietary timed locking system prevents gear grinding during engagement and extends the life of the unit.
Features
  • Air powered via external compressor
  • One piece nodular iron carrier case
  • Proprietary timed locking mechanism for smooth locking
  • Highest grade nickel alloy steel gears (30% stronger than OEM)
  • Billet machined spider gear block
  • Steel reinforced internal seals rated for over 20k cycles


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