N-Fab C0780CC-TX Cab Length Nerf Bars for Chevy Silverado and GMC Sierra 1500/2500 HD/3500 HD Crew Cab 2007-2013 - Textured Black | Bumper Superstore
2007-2018 Chevy Silverado/GMC Sierra Extended Cab 5″ Wide Polished Steps - Truck Access Plus
Amazon.com: ONINE 6 Inch Black Running Boards Custom Fit 2007-2018 Chevy Silverado/GMC Sierra 1500 & 2007-2019 2500/3500HD Extended Cab Double Cab Side Steps Nerf Bars (do not fit Diesel Model) : Automotive