The Goodyear Tire & Rubber Co. on Monday announced a joint venture with Treadco Inc. to combine commercial tire service centers. Goodyear will have 60 percent ownership interest and Treadco 40 percent in the new company, Wingfoot Commercial Tire Systems LLC. "This joint venture is in line with our corporate strategy to get closer to the customer in providing products and services at the end-user level," said Sam Gibara, Goodyear chairman.