HS Power 3" Matte Black Side Step NERF Bars Running Board 01-14 Silverado/Sierra Crew CAB Application: 2001-2013 Chevy Silverado 1500 / 1500 HD Crew Cab Models, 2001-2014 Chevy Silverado 2500 / 2500 HD / 3500 / 3500 HD Crew Cab Models, 2001-2013 GMC Sierra 1500 / 1500 HD Crew Cab Models, 2001-2014 GMC Sierra 2500 / 2500 HD / 3500 / 3500 HD Crew Cab Models, 2004-2013 GMC Sierra 1500 Crew Cab Denali Models, 2011-2014 GMC Sierra 2500 HD / 3500 HD Crew Cab Denali Models ( Will Fit Models With 4 Full Size Doors Only ) 3" Inch Side Step Nerf Bars Heavy Duty Steel With Flat Black Fine Shimmering Finish Plus 3 years Warranty Against Rust And Corrosion color:Matte ( Satin Black ) 465 lbs. Weight rating. Bar is positioned high and tight for a better fit and cleaner look. Professional installation is recommended