These 6" wide running boards with 550LB capacity are designed as heavy-duty rock sliders for Chevy Silverado and G M C Sierra trucks. The wider 6" step provides a larger. more secure footing area compared to standard running boards. making entry and exit easier in wet. muddy. or snowy conditions.The black powder coated finish resists rust and corrosion. ensuring long-term durability for off-road and daily driving. The non-slip surface adds extra safety. The bolt-on design requires no drilling. making installation straightforward with basic hand tools.Fitment Details:Fits 2007-2018 Chevy Silverado 1500 Crew CabFits 2007-2018 G M C Sierra 1500 Crew CabFits 2007-2019 Chevy Silverado 2500HD/3500HDFits 2007-2019 G M C Sierra 2500HD/3500HDPlease verify your truck's cab configuration and year before purchasing. These running boards are intended for crew cab models only. They are not designed for regular cab or extended cab configurations.For best results. install on a level surface and follow included instructions. Check bolt tightness periodically after installation. Clean with mild soap and water as needed.Whether you need 6" wide rock sliders for off-road protection. heavy-duty side steps for daily access. or a 550LB capacity running board. these bolt-on black side steps offer a durable and functional solution for your Chevy or G M C truck.