This slip yoke eliminator (SYE) kit replaces the factory slip-yoke output on a Jeep NP231 transfer case with a fixed 32-spline output shaft and 1310 CV yoke, shortening the transfer case tailhousing and requiring a fixed-length rear driveshaft. Shortening the tailhousing improves the rear driveshaft angle on lifted Wranglers and reduces driveline vibration, and the redesigned output shaft has an 18% larger spline diameter for greater torque capacity than the factory slip-yoke design.
Specifications:
- Type: Fixed pinion yoke / slip yoke eliminator kit
- Yoke: Fixed, 32-spline
- U-joint: 1310
- Tailshaft housing: Included, 356-T6 heat-treated aluminum alloy
- Material: Steel (output shaft/yoke), Aluminum (housing)
- Finish: Natural
- Sold as: Kit
- Part Number: 50-7906
Vehicle Applications:
- 1987 Jeep Wrangler YJ
- 1988 Jeep Wrangler YJ
- 1989 Jeep Wrangler YJ
- 1990 Jeep Wrangler YJ
- 1991 Jeep Wrangler YJ
- 1992 Jeep Wrangler YJ
- 1993 Jeep Wrangler YJ
- 1994 Jeep Wrangler YJ
- 1995 Jeep Wrangler YJ
- 1997 Jeep Wrangler TJ
- 1998 Jeep Wrangler TJ
- 1999 Jeep Wrangler TJ
- 2000 Jeep Wrangler TJ
- 2001 Jeep Wrangler TJ
- 2002 Jeep Wrangler TJ
- 2003 Jeep Wrangler TJ
- 2004 Jeep Wrangler TJ
- 2005 Jeep Wrangler TJ
- 2006 Jeep Wrangler TJ
No 1996 Jeep Wrangler was produced (YJ production ended after 1995 and TJ production began with the 1997 model year), so this kit does not apply to a 1996 model. A fixed-length rear driveshaft, sold separately, is required after installing this kit.
FAQ
What does the 50-7906 SYE kit fit?
It fits Jeep Wrangler YJ (1987-1995) and Jeep Wrangler TJ (1997-2006) models equipped with the NP231 transfer case.
Why is there no 1996 model year listed?
No 1996 Jeep Wrangler was built; YJ production ended after 1995 and TJ production began with the 1997 model year.
What does this kit change on the transfer case?
It replaces the factory slip-yoke output with a fixed 32-spline output shaft, 1310 CV yoke, and a new aluminum tailhousing.
Is a new driveshaft required after installing this kit?
Yes, a fixed-length rear driveshaft is required and is sold separately.
