10.4 - Front Axle¶
Type: Dana 44
Source: TJ Wrangler Rubicon
Locker: ARB RD116 Air Locker
Axle Shafts: RCV Performance CVJ44
Specifications¶
| Specification | Value |
|---|---|
| Type | Dana 44 |
| Source | TJ Wrangler Rubicon |
| Width (WMS) | Rubicon factory (54.9") |
| Spline Count | 30 |
| Locker | ARB RD1163 |
Ring & Pinion¶
| Specification | Value |
|---|---|
| Ratio | 5.131 |
| Manufacturer | Revolution Gear & Axle1 |
Differential¶
| Specification | Value |
|---|---|
| Locker | ARB RD116 Air Locker |
| Control | SwitchPros Button 9 |
Axle Shafts¶
| Specification | Value |
|---|---|
| Manufacturer | RCV Performance |
| Part Number | CVJ442 |
| Type | Chromoly CV |
| Spline Count | 30 inner / 27 outer |
| U-Joint | CV joint (integrated) |
Related Documentation¶
- Air Lockers - Locker control and air system
- Driveshafts
- Steering - PSC full hydro system
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5.13:1 ring & pinion, Revolution Gear & Axle — seller-confirmed 2026-05-31. Re-geared from the factory 4.10 (TJ Rubicon). Supersedes the earlier 4.56 owner estimate. ↩↩
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RCV Performance Ultimate Dana 44 CV Axle Set, P/N CVJ44 (fits '03–'06 Wrangler Rubicon TJ & LJ). rcvperformance.com, accessed 2026-05-31. 30-spline inner / 27-spline outer, unit bearing; set includes left + right shafts. ↩
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ARB RD116 — Air Locker for 30-spline Dana 44, 3.92:1 & numerically higher. store.arbusa.com, accessed 2026-05-31. Same part fits front and rear; the 5.13 ratio confirms RD116 (the 3.73-&-lower RD117 does not apply). ↩