The NP 231 is a rugged offroad part. If you have a Jeep Wrangler or Jeep Cherokee with a short driveshaft, we have short shaft kits and adapters to lengthen your driveshaft by at least 4 inches. These 4x4 Jeep parts work in conjunction with 231 transfer cases and can withstand increased torque. Most do not require lowering the transfer case. Improve your Jeep’s short wheelbase to complement lifts and other upgrades and modifications you’re setting up. When you buy from us, you’re getting only the best aftermarket parts from the most reputable offroad brands. If you have questions about these kits, just ask. Buy your Jeep short shaft kit today.