Not only do we make the best lift kits and suspension systems on the market, but we also offer accessories for your Wrangler/Unlimited, Gladiator, and other Jeep models. Here is a look at our transfer case upgrade kits and accessories for the TJ Wrangler/Unlimited, YJ Wrangler, XJ Cherokee, and Jeep CJ models.
Short Shaft Kits
These kits must be used with a CV-style (double Cardan) driveshaft. Fits NP231-J Transfer Cases only.
TJ: NP231 Extreme Short Shaft Kit
The TeraFlex TJ: NP231 Extreme Short Shaft Slip Yoke Eliminator Kit is what short-wheelbase TJ Wrangler/Unlimited owners have been dreaming about for decades. Not only does the Extreme Short Shaft Kit improve on strength, but it also increases driveshaft length by up to 7” over a stock application. This kit is also more than 3” shorter than our standard Short Shaft Slip Yoke Eliminator Kit and 1.5” shorter than an ATLAS II. Speedometer readings are transferred through a tone ring and electronic sensor.
Includes: output housing, transfer case output shaft, output housing seal, output housing bearing, rear output yoke, output yoke flanged nut, speed sensor, all necessary hardware.
NP231 Extreme Short Shaft Slip Yoke Eliminator Kit:
- TJ: NP231 Extreme Short Shaft Kit
- Electronic Transfer Case Speed Sensor w/ Harness
- Rear Output Yoke
- Output Housing Seal
- Output Yoke Flanged Nut
TJ Wrangler/Unlimited | YJ Wrangler | XJ Cherokee
NP231 Short Shaft Slip Yoke Eliminator Kits
TeraFlex NP231 Short Shaft Slip Yoke Eliminator Kits increase the rear driveshaft length by 4” eliminating the need for a Transfer Case Lowering Kit in most cases. Also includes a larger output bearing and rear housing.
Includes: output housing, transfer case output shaft, output housing seal, output housing bearing, rear output yoke, output yoke flanged nut, all necessary hardware, more.
- 1997–2006 TJ Wrangler
- 2004–2006 LJ Wrangler Unlimited
- 1987–1995 YJ Wrangler
- 1984–2001 XJ Cherokee
NP231 Short Shaft Slip Yoke Eliminator Kits:
- TJ | LJ | YJ | XJ: NP231 Short Shaft Slip Yoke Eliminator Kit
- XJ Cherokee: NP231 Short Shaft Slip Yoke Eliminator Kit w/ Vacuum Disconnect
2Low 2WD Low-Range Shift Sector Kits
The TeraFlex TJ: NP231-J 2Low 2WD Low-Range Shift Sector Kit adds a low-range 2WD/RWD (two-wheel-drive/rear-wheel-drive) option to the TJ Wrangler/Unlimited model’s NP231-J transfer case’s standard low-range shift pattern.
This kit enhances trail turning ability by allowing tighter turns on narrow switchbacks and eliminates most front-end bind encountered while turning with 4WD (four-wheel-drive) engaged.
This internal modification does not require any external upgrades.
New Shift Pattern: 2H > 4H > N > 4L > 2L