Please use the FIT CHART to determine which bar fits your truck. The powder-coated, steel crossbar can be used for up to 4 racks, depending on your truck bed width. Each rack will use about 12" of rail width.  The Hanger Crossbar will mount over the bed wall right behind the cab of your truck. Securing the Hanger brackets requires an anchor point such as a standard tie-down hook common in most truck beds (see photos on this page). Some assembly required.  Please allow 7-10 days for shipping and handling.