N-FAB C1589QC Gloss Black Nerf Step; Wheel 2 Wheel Chevy-GMC 2500 / 3500 (15-16 Diesel Model) Double Cab 6.5' Standard Bed 15-18 Trend-setting hoop step design provides ease of access for all passengers on stock or lifted vehicles Heavy gauge 3" main tube fit tight to the body for a clean modern look. Fully welded assembly with integrated mounting brackets, for maximum strength and ease of installation Dimpled step plate allows superior Traction and stability in any weather condition Wheel 2 wheel configuration main bar runs from back of front wheel well to front of rear wheel well. No third step