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Dana 50 ARB Air Locker | 30 Spline | Replaced by RD158
ARB Air Locker
Photo is for illustration purposes only and may
not be an accurate depiction of this product.


Status: Superseded
Product Code: ARB-RD50

Optional Services

Add Cryogenic Treatment Service [+$300.00]
- Increases strength and durability of lockers by 20-50%.
- Improves case and core hardness transition and microstructure.
- Relieves internal stresses and reduces microfractures.

Services are performed by Crown Race Gears.
Service times vary by season (2 to 6 weeks).

Replaced by:
Description Compatibility Part Numbers

ARB Model: Application: Axle Shafts: Gear Ratios:
RD50 Dana 50 30 Spline All

This ARB Air Locker fits Dana 50 axles and includes new carrier bearings.

This ARB Locker has been replaced by ARB RD158

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 images are © Copyright ARB Corporation Ltd., used with permission.
Additional images and product descriptions are © Copyright Filthy Motorsports, LLC.
  • 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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