The Ford Superduty line of trucks are usually bought to put to work. We offer a full line of products to help keep your driveline in great working condition as long as possible. Adding a differential cover is a great idea for any truck that hauls or pulls. The extra oil capacity along with the cooling fins keeps the temperature of the differntial oil down and increases the life of the ring and pinion. If you need help figuring out what rear end you have or just want some advice on what to upgrade to make it last longer, please feel free to give us a call.