APS iBoard (Silver 4 inches) Running Boards | Nerf Bars | Side Steps | Step Rails for 1999-2016 Chevy Silverado/GMC Sierra Regular Cab (Excl. C/K Classic) Set of 2 iBoard running boards for your truck or suv, INCLUDES support brackets, mounting Kit, hardware, and DIY instructions. Body Frame Mount (No Drilling Required) Installs in under 1 hour, with NO DRILLING required for most trucks. Side steps bolt on to your truck's rocker panel or frame. POLISHED 4 inches aluminum running boards with step pad - supports up to 300 LBS on either passenger or driver side. Check fitment notes or click on SEE ALL VEHICLES THIS PRODUCT FITS link. Running boards fit dealer installed mudflaps or splash guards. Great looking CAB LENGTH nerf bars for your: 1999-2016 Chevy Silverado / GMC Sierra Regular Cab (Excl. C/K Classic)