We are based in northern California and we use the rugged terrain of the Sierra Nevada foothills to push the durability of our products both on and off road. Whether you need replacement parts you can trust for your daily driver, or you need parts to hold up to the demands of competition, our goal is to make the strongest products on the market. For many years Kryptonite Steering and Suspension Products have used the Heavy Duty full sized Duramax Diesel truck platform as the products proving grounds. Through countless miles of research and development our Kryptonite branded products have evolved to be the best and most reliable around. Whether for work, play, or competition, you can trust Kryptonite Steering and Suspension Products. We stand behind our products for as long as you own your truck or side by side.