In 1983, Belltech developed one of the industry's first revolutionary products to help jump start the Sport Truck craze, the Drop Spindle. By relocating the spindle pin (Note: Application, while improving handling and retaining factory ride quality. Belltech spindles maintain critical suspension geometry and eliminate excessive ball joint, shock and tire wear common to other methods of lowering. Each spindle is crafted from powdercoated, CNC machined, high strength ductile iron castings providing the structural integrity to meet and exceed all factory specifications & requirements.Installation InstructionsInstallation InstructionsThis Part Fits: Year Make Model Submodel 2004 Chevrolet Colorado Base 2004,2006-2008 Chevrolet Colorado LS 2006-2012 Chevrolet Colorado LT 2004-2005 Chevrolet Colorado Sport 2004-2005 Chevrolet Colorado Sport LS 2006-2012 Chevrolet Colorado WT 2004-2005 Chevrolet Colorado Z85 2004-2005 Chevrolet Colorado Z85 LS 2004,2006 GMC Canyon SL 2004,2006,2010 GMC Canyon SLE 2006,2009-2010 GMC Canyon SLT 2006 GMC Canyon WT 2004-2005 GMC Canyon Z85 SL 2004-2005 GMC Canyon Z85 SLE