LUVERNE MegaStep 6-1/2" running boards are the ultimate combination of style and functionality. They have 5" wide treads that extend the full length of the side steps, and they feature a strong, lightweight aluminum core with a stainless steel trim for a bright, clean accent. MegaStep running boards mount easily with vehicle-specific brackets, pre-installed fasteners and an adjustable design to perfectly fit your unique vehicle. LUVERNE MegaSteps are designed to offer the best features from a variety of side accessory options. Their non-skid rubber treads cover the entire topside of the boards, giving them the functionality and convenience of a running board. However, unlike most running boards, MegaSteps are styled after the popular look of many nerf bars. This makes them a unique and useful extension of your vehicle. To give MegaStep running boards an even greater advantage over other side steps, they are built to outlast the elements. We construct them with a strong, lightweight aluminum base that naturally resists rust, and we finish them with a high-polish stainless steel trim. The trim is a heavy-duty, 18-gauge stainless steel to make it more than just a fancy accent, and its highly polished finish gives the running boards a bright, long-lasting shine. Installation of LUVERNE MegaStep running boards is easy and customizable. The boards come with pre-installed fasteners and attach using high-strength, vehicle-specific mounting brackets. They are also uniquely designed to be adjustable inward, outward, forward or backward, giving you complete freedom to position the steps wherever you want them. This particular set of running boards is designed to fit specific years of the Chevy Silverado 1500, 2500 HD or 3500 HD and GMC Sierra 1500, 2500 HD or 3500 HD (see application info to verify fitment). Brackets for these running boards are included but ship separately.