PartsTrend 5" Chrome Nerf Bar Running Boards Compatible with 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Chevy Silverado GMC Sierra 1500 2500 3500 Extended Cab/Double Cab Side Step Bars Compatible with: The nerf bar compatible with 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Chevy Silverado/GMC Sierra 1500 2500 3500 1500HD 2500HD 3500HD Extended Cab/Double Cab. (Note: Only for Extended Cab/Double Cab with 2 Half-size Door) 100% brand new 2 nerf bars for both driver & passenger sides, all mounting hardware kit and installation instruction included. Polished to mirror finish making the running board will never rust. 5 inch side step bars are made of heavy duty marine grade stainless steel with UV resistant non-slip wide side step pads. Direct bolt on, no-drill installation compatible with Chevy Silverado/GMC Sierra side step, truly custom fit.