ARB Air Locker — Dana 44 (33-Spline, 3.92 & Up)
The Dana 44 is the backbone of serious Jeep builds, but even a strong axle loses drive through an open diff when a tire lifts. The ARB Air Locker turns your Dana 44 into a driver-selectable, fully locked axle on demand: switch it on for 100% traction on rocks and ledges, switch it off for smooth, open-diff street driving.
This carrier fits 33-spline Dana 44 axles running 3.92 and numerically higher gear ratios — the common setup on the Jeep Wrangler TJ and similar builds. On-demand engagement means maximum traction without the ride, steering or tire-wear compromises of an automatic locker.
- Selectable, air-operated 100% differential lock
- Forged internals for the 33-spline Dana 44 axle
- Matched to 3.92 & numerically higher ring-and-pinion ratios
- Instant engagement from an ARB air source
Trade-off: needs a compressed-air supply (an ARB compressor is the usual choice) and professional installation with correct diff setup. Verify your spline count and gear ratio before ordering.
| Specification | Detail |
|---|---|
| Type | Selectable air-operated locking differential |
| Differential / axle | Dana 44 |
| Spline count | 33 |
| Ring gear ratio range | 3.92 & numerically higher |
| Actuation | Compressed air — ARB air source required |
| Operating pressure | 100 psi (nominal) |
| Part number (MPN) | RD113 |
| GTIN | 881348006745 |
| Brand | ARB |
This fits: 33-spline Dana 44 axles with 3.92-and-up ratios, including Jeep Wrangler TJ applications. Browse more Differentials & Lockers or the full ARB collection.
Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm. For more information go to www.P65Warnings.ca.gov.
Presented by Overland Kitted
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