With its headquarters in the Heart of the Ozarks, IWX Motor Freight operates an interstate tractor-trailer line. IWX, headquartered in Springfield, Mo., specializes in hauling produce from the West Coast to the Midwest and beyond. It also provides the same service and hauling capacity to dry freight customers. IWX has specialized equipment. Its 2002-2003 Freightliner tractors and 53-foot High-Cube trailers provide the maximum space and payload to customers. Company trailers are equipped with IWX Thermo Tracs. This satellite communication capability allows IWX to track not only the position of a piece of equipment, but also the proper operation of the refrigeration unit for temperature controlled loads. The company has more than 525 late-model tractors and 600-plus 53-foot trailers.