Fits: 2002–2009 Chevrolet Trailblazer 2003–2004 Chevrolet SSR 2002–2006 Chevrolet Trailblazer EXT 2002–2009 GMC Envoy 2004–2005 GMC Envoy XUV Belltech4207Coilover SpringsBelltech Lowering Coil Springs have been engineered to provide the visual lowering you are looking for with the quality that you have come to expect from Belltech. Unlike other lowering springs on the market, Belltech specializes in not only ride comfort & quality, but improving the handling performance of your Sport Truck or SUV as well. Each coil spring is manufactured from cold wound chromium alloy steel, then shot peened and powder coated to exact specifications to assure the proper ride height, ride quality and long life.Belltech Pro Coil lowering spring kits provide two lowering height options to gain the perfect stance. You figured out what lowering you want to match your wheel and tire combination, but afterwards you decided you would like to go an inch lower. No problem. Belltech's Pro Coil kits includes their high-quality coil springs and engineered vehicle specific upper spring or strut mount spacers, allowing you to change your mind and your vehicle's stance.