aFe Front Differential Cover (Raw; Street Series); Dodge Diesel Trucks 03-12 L6-5.9/6.7L (td)aFe Powers new front end differential cover brings performance engineering to the protection of your trucks front end. This differential cover has a 3 1 2 quart lube capacity (factory cover holds 2 1 2 quarts) at the factory fluid level line, a magnetic drain plug and a magnetic fill plug to remove unwanted debris. Built in external fins transfer heat from the fluid to the outside air for maximum cooling. aFe has also designed a large oil level sight