aFe Power's new rear differential cover brings performance engineering to the protection of your  truck's rear-end. This differential cover has a 5 quart lube capacity (factory cover holds 4 quarts) at the factory line, a magnetic drain plug, a magnetic tipped fill plug for maximum protection. Built-in internal and external fins transfer heat from the fluid to the outside air for maximum cooling.  aFe has also designed a large oil level sight glass with calibration plug set to the factory fluid level to eliminate overfilling. This differential cover is constructed out of durable die-cast A380 aluminum with reinforced ribs and a wrinkle black powder coating for maximum strength and styling. This cover fits the Dana #80 axles. This cover uses an O-ring for a leak-free seal. When it comes to engineering for power, performance, protection and value,  aFe Power is the only choice.

Note: This cover also fits 1999-2007 Ford F-350/F-450 Power Stroke dually trucks.