What kind of gear oil is included?

The included gear oil exceeds API GL-5 specifications, so it's suitable for both open and limited-slip differentials. Using the included oil ensures proper lubrication and performance for your specific application. Always refer to your vehicle's manual for specific oil requirements.

How does the calibration plug work?

The calibration plug is set to the factory oil level. This prevents overfilling, which can cause leaks and damage to the differential. Just fill until oil reaches the calibration plug, and you're good to go.

How often should I inspect the oil level?

aFe recommends checking the oil level periodically, especially if you're using your truck for towing or off-roading. The sight glass makes it easy to check the level without removing any plugs. If the oil level is low, top it off with a GL-5 rated gear oil.

aFe Power Rear Diff Cover (Machined) 12 Bolt 9.75in 97-16 Ford F-150 w/ Gear Oil 4 QT

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aFe

aFe Power Rear Diff Cover (Machined) 12 Bolt 9.75in 97-16 Ford F-150 w/ Gear Oil 4 QT

Name: aFe Power Rear Diff Cover (Machined) 12 Bolt 9.75in 97-16 Ford F-150 w/ Gear Oil 4 QT
Brand: aFe
Price: 467.71 USD
Availability: InStock

$467.71

Aluminum diff cover with extra oil capacity and cooling fins. Includes gear oil and hardware.

Key Features

Increased oil capacity — better performance over longer intervals
Internal and external fins — maximize cooling
Magnetic drain plug — captures loose particles
Oil level sight glass — quick and easy oil inspection
Calibration plug — prevents overfilling
Includes 4 quarts of gear oil — exceeds API GL-5 requirements

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Will this fit your vehicle?

Compatible with 89 vehicles

Need Help?

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Since 1957

Family-owned

Product Details

aFe POWER Pro Series Differential Cover Black w/ Machined Fins & Gear Oil Ford F-150 97-23 (9.75-12)

The supplied gear oil (4 quarts) exceeds the performance requirements of API GL-5 recommended for both open and limited slip applications. This cover has an increased oil capacity over stock for better performance over a longer duration. Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling. This cover incorporates a magnetic drain and deep reach fill plug to capture loose particles for maximum protection. A calibration plug is set to the factory oil level to prevent overfilling. Included oil level sight glass allows quick and easy oil inspection.