aFe Power Pro Series Aluminum Rear Differential Cover-Black; 46-71180B

Increased Oil Capacity: This cover has an increased oil capacity over stock for better performance over a longer duration.
\nBuilt-in Internal/External Fins: Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling.
\nMagnetic Plugs: This cover incorporates a magnetic drain and deep reach fill plug to capture loose particles for maximum protection.
\nCalibration Plug: A calibration plug is set to the factory oil level to prevent overfilling.
\nOil Level Sight Glass: Included oil level sight glass allows quick and easy oil inspection.
\nFitment Note: This item fits trucks equipped with Super 8.8 rear axles.
\nEmissions Disclaimer: This product does not require a CARB EO#.
\nWhen it comes to engineering for power, performance, protection and value, aFe POWER is the only choice.