The NP231 transfer case is a rugged, reliable, and durable unit that has been used in a variety of vehicles since 1988. Most commonly found in Jeep Wrangler YJ, TJ, and XJ Cherokees, the NP231 is ...
Jeep has been outfitting its Wranglers, Commanches, and Cherokees with the New Process/New Venture Gear 231 transfer case since 1988. It has been a great case for the majority of the owners, but some ...