Dana is a supplier of driveline (axles, driveshafts, and transmissions), sealing, and thermal-management technologies for vehicles with both conventional and alternative-energy powertrains. The company produces for original-equipment manufacturers and the aftermarket for passenger vehicles, commercial trucks, and off-highway equipment. Dana generates the majority of its revenue from its light vehicle segment, selling primarily to Ford, Hyundai, Tata, Nissan, GM, and Toyota. The company's largest end market is North America.