Access Ladder Racks 4000946 Industrial versatility with a strong emphasis on more. The ADARAC(TM) Aluminum Pro Series utilizes the same heavy duty corrosion resistant construction, superior strength and multiple tie down options as our ADARAC(TM) Aluminum Series. Vertical uprights maximize hauling power with limited framework interference for cargo and folding tonneau cover operation. The ADARAC(TM) Aluminum Pro Series has the strength to get the job done. ADARAC Aluminum Pro Series Truck Bed Rack System ADARAC Aluminum Pro Series Truck Bed Rack System. For Ford F-150 6ft. 6in. Box. Access ADARAC Aluminum Pro Series 97+ Ford F-150 6ft 6in Bed Truck Rack