ARB BASE Rack Mount Kit - Use w/ BASE Rack 1770030Using the proven attachment methods from ARB's classic style roof racks as the basis, a BASE Rack specific mount kit and wind deflector have been developed for the 100 Series Land Cruiser. BASE Rack specific blade brackets have been developed to suit the 61 x 51 in PN 1770020 BASE Rack. By incorporating a dovetail extrusion around both the full perimeter and along each edge of the internal beams, the BASE Rack provides endless mounting and attachment