aFe Power Gas Differential Cover for Ford F-150 2015 - 2021

PRO Guard D2 Synthetic 75W-90 Gear Oil:The supplied gear oil (4 quarts) exceeds the performance requirements of API GL-5 recommended for both open and limited slip applications.Increased Oil Capacity:This cover has an increased oil capacity over stock for better performance over a longer duration.Built-in Internal/External Fins:Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling.Magnetic Plugs:This cover incorporates a magnetic drain and deep reach fill plug to capture loose particles for maximum protection.Calibration Plug:A calibration plug is set to the factory oil level to prevent overfilling.Oil Level Sight Glass:Included oil level sight glass allows quick and easy oil inspection.Fitment Note:This item fits trucks equipped with Super 8. 8 rear axles.Emissions Disclaimer:This product does not require a CARB EO#.When it comes to engineering for power, performance, protection and value, aFe POWER is the only choice.