Dana Spicer 2-4-3801X End Yoke Assembly
The Dana Spicer 2-4-3801X End Yoke Assembly is a genuine Spicer differential or pinion yoke designed for select Dana 60-, Dana 61- and Dana 70-series axle applications using a 1310-series universal joint. This steel, splined-hole yoke installs on the differential pinion shaft and connects the axle input to the driveshaft.
The 2-4-3801X features a 29-spline involute bore and a U-bolt-style universal-joint retention system. Its OE-style dimensions help maintain correct driveline alignment, universal-joint positioning and operating angles while reducing the risk of vibration, accelerated bearing wear and premature driveline failure. Genuine Spicer yokes are engineered and tested for proper fit, strength and durability in demanding driveline applications.
Dana’s catalog identifies the part as suitable for front- or rear-differential service, while driveline suppliers commonly list it for Dana 60, Dana 61 and Dana 70 axle applications. Exact compatibility must be confirmed using the axle model, bill of material, spline count and universal-joint series.
Technical specifications
| Specification | Detail |
|---|---|
| Manufacturer | Dana Spicer |
| Part number | 2-4-3801X |
| Component type | Differential/pinion end yoke |
| Universal-joint series | 1310 Series |
| Yoke retention style | U-bolt |
| Bore type | Splined hole |
| Spline type | Involute |
| Spline count | 29 |
| Major spline diameter | 1.276 in. |
| U-joint bearing diameter, D | 1.062 in. |
| Outside yoke dimension, E | 3.219 in. |
| Hub diameter, R | 1.875 in. |
| Length through hole, Q | 1.500 in. |
| Centerline to end of hub, S | 2.938 in. |
| Material | Steel |
| Slinger reference | 34592 |
| Package quantity | 1 each |
| UPC | 023913259624 |
| VMRS code | 022-003-072 |
Cross-references
- Dana Spicer 2-4-3801X, 243801X, 2-4-3791
- International Harvester 243801X, E243801X
- Navistar DS243801X, E243801X
- Volvo/Spicer SP243801X
- UAP 2-4-3801X
- P2-4-3801X
- NSN 2520-00-928-6150
- NIIN 00-928-6150







