U-drive 4" inch Oval Black Carbon Steel Running Boards FIT 07-18 Chevy Silverado/GMC Sierra 1500/2500HD/3500HD New Body Style&nbsp;Crew Cab (with 2 full size front doors and 2 full size rear doors) Only fit 2007-2018 Chevy Silverado/GMC Sierra 1500/2500HD/3500HD New Body StyleCrew Cab (Means with 2 full size front doors and 2 full size rear doors, Exclude Z71/Diesel Models w/ DEF Tank) 4" Inch Oval Style Tube + Slip-Resistant Plastic Step Pads Made from heavy duty Carbon Steel Direct Bolt-On Black Powder Coated