Westin Step Board Mount Kit is meant for use with the Molded Step Board or Sure-Grip Running Board. These kits allow you to choose the length and style of the board. The kit includes all necessary hardware and instructions to guide the user. They require minimal drilling for their installation. A gap strip is recommended to cover space between molded step boards and body panels. It does not fit with Original Equipment skirt cladding. They are application-specific and fit perfectly on truck or SUV.