Vehicle Application: Chevrolet Silverado 1500 2006-99, Silverado 1500 Classic 2007; GMC Sierra 1500 2006-99, Sierra 1500 Classic 2007 Environmentally-friendly coating applied to tie rods and lines to provide a clean appearance and prevent rust. 100% performance testing to ensure perfect fit, function and reliable performance. Computerized spool valve balancing ensures exceptional steering feel. Supplied with O.E.M. grade seals, O-rings and boots to provide optimal sealing performance and longevity. Built to meet or exceed O.E.M. performance. OE Reference: 19133675 26079794 26087761 26091958 26101929 88963415