LUVERNE running boards and side steps are designed to mount with vehicle-specific brackets for a custom fit on each application. This accessory bracket kit is designed to fit specific running board or side step part numbers and certain years of the Chevy Silverado 2500 HD or 3500 HD and GMC Sierra 2500 HD or 3500 HD (see application info to verify fitment). NOTE: Running boards / side steps are not included in this package and must be purchased separately.