Topline Autopart 3" Polished Stainless Steel Side Step Nerf Bars Rail Running Boards For 07-18 Chevy Silverado ; GMC Sierra 1500 / 2500 HD / 3500 HD Regular ( Standard ) Cab Application: 2007-2018 Chevy Silverado 1500 / 2500 / 3500 Regular ( Standard ) Cab ; 2007-2010 Chevy Silverado 2500 / 3500 Regular ( Standard ) Cab Models With Diesel Turbocharged Engine ; 2007-2018 GMC Sierra 1500 / 2500 / 3500 Regular ( Standard ) Cab ; 2007-2010 GMC Sierra Regular ( Standard ) Cab Models With Diesel Turbocharged Engine ( Attention Note: Rocker Panel Mount For Installation ; Will Fit Models With 2 Full Size Doors Only ; Will Not Fit 2011 & Up Diesel Models With DEF Tanks ) 3" Side Step Nerf Bars Classic Style Design Tube, Rugged Frame & Mount Design Tube For Strength & Durability Heavy Duty Polished Stainless Steel, Stainless Steel Tubes Maximizes Rust Protection Color: Polished Stainless Steel