Pro Comp is the fastest, safest, least expensive way to bring the front of your Hummer H3 level with the rear. This gives you the clearance and ability to add wheels and tires up to 35" in diameter. Pro Comp products do not affect the factory OEM ride quality or comfort. Pro Comp is also the only company that forges torsion keys for ultimate strength. Thats why Pro Comp also offers a lifetime warranty for as long as you own your vehicle against defects for all of our products.
