This Genuine Ford Shaft & Joint Assembly AL1Z-3B436-A is a direct replacement for your F-150 Expedition Navigator. The product is a genuine OEM part with a manufacturer box. The item can be used for left, front, and right front outer replacements on your vehicle. The AL1Z-3B436-A is a quality product from Ford, It is a perfect fit for your vehicle and replaces part number 7L1Z-3B436-B. Buy with confidence and enjoy the benefits of this product without worrying about the condition as it is brand new.