aFe POWER's Dana M220 differential cover is constructed out of durable, heavy duty, ¼” thick iron for strength. With a smooth design, the cover is coated black, features an aFe POWER logo, and includes a high fill plug to help prevent trail damage. Weighing in at a hefty 9 lbs., this cover is trail ready and is constructed from heavy duty ¼” thick cast iron for increased strength and durability. It features a smooth design which reduces rock hang up. High fill point helps prevent rock damage to the oil fill, keeping it serviceable and leak-free. Calibration plug set to the factory oil level to eliminate overfilling.