Unity automotive has over 50 years of experience manufacturing parts in the aftermarket automotive industry. The company offers superior quality, specializing in making rock solid auto parts that withstand the test of time. With a true understanding of their marketplace they have become the industry leader in innovation of aftermarket suspension. Unity automotive delivers top of the line quality suspension parts made to insure a trouble-free installation and long-lasting reliability. The Replacement Shock absorber line offers a twin tube gas charged shock to be used as a direct replacement for your failing OE shocks. We offer our shock absorbers in sets and bundles, providing an easier solution for your vehicle’s suspension at the lowest prices. The kit includes 2 nitrogen gas charged shock absorbers. This Product Fits: 2004-2012 Chevrolet Colorado 4WD and GMC Canyon 4WD and RWD w/ offroad suspension; 2006 Isuzu i-350; 2007 Isuzu i-370 NOTE: Fits Four Wheel Drive Models without Off Road Suspension and RWD Models with Off Road Suspension