For all you out there with 1999-04 Jeep Grand Cherokee's with brake rotor warping issues... or any other jeeps with brake wear problems, here is what you have been looking for. Frozen Rotors® from Diversified Cryogenics deliver increased performance and a higher level of safety while significantly reducing braking system costs. The proprietary, 60-hour cryogenic process permanently and dramatically improves the usage life and stability of brake rotors to create a distinct advantage in tensile strength, abrasive wear resistance and rotor longevity. Frozen Rotors® resist cracking, warping and fading. By using the cryogenic process to inhibit internal oxidation and increase thermal fatigue resistance, Frozen Rotors® can last up to three times as long as untreated rotors. You can find your application today by going to www.FrozenRotors.com I work for the company in the production area and as a Jeep enthusiast, I thought I would let you all in on this. Let me know if you have any questions. We sell a lot of brakes for high end race cars and fleet companies around the world, however funny enough, the 1999-04 Jeep Grand Cherokee is one of our fastest selling rotors!