The aFe Pro Series rear differential cover kit for Dodge diesel trucks (2003–2005, 5.9L) is a die-cast A380 aluminum cover with machined fins and wrinkle black powder-coating designed to protect the rear end. It increases lube capacity to 3.5 quarts at the factory level, includes a magnetic drain plug and magnetic fill plug, a large oil level sight glass with calibration plug and reinforced ribs; external fins help transfer heat away from fluid for improved cooling.
aFe Power Cover Rear Differential w/ 75W-90 Gear Oil Dodge Diesel Trucks 03-05 L6-5.9L