Overview
The Crown Automotive 4798120 is a front output yoke for the NP231 transfer case, with 26 splines and no slinger. It is made for a Spicer 1310 series u-joint with a 3.219 inch outside diameter.
The yoke fits the 1997–2006 Jeep Wrangler TJ, the 1996–2000 Jeep Cherokee XJ SE, and the 1997–2000 Dodge Dakota and 1998–2000 Dodge Durango. Owners of those vehicles should compare their year and trim before buying.
Key features
- Designed for the NP231 transfer case front output
- 26 splines
- No slinger on this design
- Uses a Spicer 1310 series u-joint with a 3.219 inch outside diameter
Driveline work checklist
A front output yoke carries driveshaft torque from the transfer case, so the yoke face, splines and seal area all see load. Before removing an old yoke, mark the driveshaft and yoke position so the new one lines up with the same phasing. Inspect the transfer case output seal for leaks, since a yoke change is a good time to replace it.
The u-joint must match the Spicer 1310 series design with a 3.219 inch outside diameter, so compare the cap diameter before ordering. Worn splines on the old yoke can also point to wear on the transfer case input. Tightening the yoke nut to the value in your service manual keeps the joint from walking loose.
- Mark driveshaft and yoke alignment before disassembly
- Inspect the output seal and replace it if leaking
- Compare u-joint cap size before ordering
- Check splines for wear on both yoke and driveshaft
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | 4798120 |
| UPC | 848399008913 |
| Transfer case | NP231 |
| Output position | Front |
| Splines | 26 |
| Slinger | No |
| U-joint | Spicer 1310 series, 3.219 inch O.D. |
Vehicle fitment
It fits 1997–2000 Dodge Dakota (Base, R/T, SLT, Sport); 1998–2000 Dodge Durango (Base, R/T, SLT, SLT Plus, Sport); 1996–2000 Jeep Cherokee (XJ) SE; and 1997–2006 Jeep Wrangler (TJ) in the 65th Anniversary Edition, Rubicon, SE, Sahara, Sport and X trims.
Not covered on this list: the Jeep Wrangler YJ, the 2007 and later Wrangler JK, and Cherokee years outside 1996–2000. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Replacing a front output yoke usually means removing the driveshaft and the u-joint first. Tighten the yoke nut to the specification in your service manual, and consider a driveline shop if you are not set up for that work.
What’s included
The yoke is the item supplied. Check the package contents against your installation, including the seal and nut, before starting.
Not included: the Spicer 1310 series u-joint this yoke is built to use, which is a separate part.
