Raptor Series 0401-0016M (99-17) Chevy Silverado/GMC Sierra 1500/2500 Extended Cab/Double Cab (6.5ft Bed); 00-17 Chevy Silverado/GMC Sierra 3500 Extended Cab/Double Cab (8ft Bed, Dually) 4" SS W2W Oval Steps Polished End Caps 4 in. Wide Step Area Easy No Drill Installation 500 lb. Weight Rating