3" CHROME SIDE STEP NERF BARS RUNNING BOARDS 07-14 SILVERADO/SIERRA EXTENDED CAB Application: 2007-2013 Chevy Silverado 1500 Extended Cab New Body Style Models, 2007-2014 Chevy Silverado 2500 HD / 3500 HD Extended Cab New Body Style Models, 2007-2013 GMC Sierra 1500 Extended Cab New Body Style Models, 2007-2014 GMC Sierra 2500 HD / 3500 HD Extended Cab New Body Style Models ( Will Fit Models With 2 Full Size Front Doors & Half Size Back Door; Will Not Fit Diesel Models With DEF Tanks ) 3" Inch Side Step Nerf Bars Heavy Duty T-304 Full Stainless Steel With 5 years Warranty Against Rust And Corrosion color:Chrome 465 lbs. Weight rating. Bar is positioned high and tight for a better fit and cleaner look. Professional installation is recommended