This modular Ford Transit Low Roof Rack 148 is a direct bolt on with no modifications needed. The full-length aluminum roof rack fits 2015-Current Transit 148 Low Roof Vans and offers over 8 ft of space for mounting gear and accessories. Blades are made with 3/16" thick aircraft grade aluminum, and the rack is mounted using 8 bent Aluminum towers in the Ford factory locations. Accessories can be easily attached to the extruded aluminum crossbars. The blades and towers have a textured powder coated finish for lasting durability. Comes with 5 crossbars, with the option for more.