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 Elite Suspension Line Powered by Unity introduces solutions to retrofit steel springs converting your air ride to a more reliable passive suspension setup. 2002-2013 Cadillac Escalade, 2003-2012 Cadillac Escalade ESV, 2002-2012 Cadillac Escalade EXT, 2007-2012 Chevrolet Avalanche, 2002-2006 Chevrolet Avalanche 1500, 2002-2006 Chevrolet Avalanche 2500, 2000-2012 Chevrolet Suburban 1500, 2000-2012 Chevrolet Suburban 2500, 2000-2012 Chevrolet Tahoe, 2000-2012 GMC Yukon, 2000-2013 GMC Yukon XL 1500, 2000-2012 GMC Yukon XL 2500 NOTE: Includes Resistors