These hubcentric 1993 - 1998 Jeep Grand Cherokee ZJ wheel adapters are precision engineered to widen your tire track by 1.25 inches on each side, improving the look of your vehicle and accommodating wider custom rims and tires (please note that these wheel spacers will CHANGE your vehicle's bolt pattern and are intended for use with 5x5" wheels). Supreme Suspensions products are developed and rigorously tested by in-house ASE certified specialists, in conjunction with dealerships and professional racers across the United States. Our Pro-Billet Series Wheel Adapters are CNC machined from solid blocks of T6 Aircraft Billet and receive a special anodized coating. Renowned for its sheer strength and light weight, this premium material is guaranteed to withstand even the most extreme environments. Each adapter features splined studs that are pressed into place rather than glued as in many of the lesser, knock-off wheel adapters on the market. Once our adapters are properly installed, they stay installed without the risk of vibrations or imbalance. Your factory wheel studs may need to be shortened to ensure safe fitment of the wheel.