ARB Air Locker — Dana 44 (35-Spline, 3.92 & Up)
Upgrade to 35-spline shafts and your Dana 44 can take real abuse — but an open diff still sends power to the wheel with the least grip. The ARB Air Locker makes that axle a driver-selectable, 100% locked unit on demand: on for total traction over rocks and ledges, off for smooth open-diff street driving.
This carrier is built for heavy-duty 35-spline Dana 44 axles running 3.92 and numerically higher gears — the go-to setup for built Jeep Wrangler TJ rigs on larger tires. On-demand engagement delivers maximum grip without the manners and tire-wear compromises of an automatic locker.
- Selectable, air-operated 100% differential lock
- Forged internals for the 35-spline Dana 44 axle
- Matched to 3.92 & numerically higher ratios
- Instant engagement from an ARB air source
Trade-off: requires a compressed-air supply and professional installation with correct diff setup. Confirm your spline count and gear ratio before ordering.
| Specification | Detail |
|---|---|
| Type | Selectable air-operated locking differential |
| Differential / axle | Dana 44 |
| Spline count | 35 |
| Ring gear ratio range | 3.92 & numerically higher |
| Actuation | Compressed air — ARB air source required |
| Operating pressure | 100 psi (nominal) |
| Part number (MPN) | RD109 |
| GTIN | 881348006707 |
| Brand | ARB |
This fits: 35-spline Dana 44 axles with 3.92-and-up ratios, including built 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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