aFe Pro Series Front Differential Cover

Fits AAM 9.25-12 Bolt Front Axles

46-70402

Overview:

The aFe Pro Series Front Differential Cover with Machined Fins is a premium upgrade designed to enhance the durability and performance of your vehicle’s front differential. Crafted for vehicles equipped with AAM 9.25-12 bolt front axles, this differential cover increases fluid capacity and improves cooling efficiency, helping to extend the life of your differential components. Ideal for off-road enthusiasts, heavy-duty users, and anyone looking to protect their drivetrain, this cover combines rugged construction with functional design to deliver reliable performance under demanding conditions.

By replacing the stock stamped steel cover with this finned aluminum alternative, you gain superior heat dissipation and easier maintenance access. The integrated cooling fins and increased fluid volume reduce operating temperatures, which is critical for maintaining optimal differential performance and preventing premature wear.

Key Features:

This Pro Series differential cover incorporates advanced features to maximize protection and functionality:

• Constructed from durable die-cast A380 aluminum for strength and longevity
• Machined cooling fins cast into the cover for enhanced heat dissipation
• Wrinkle black powder-coated finish provides corrosion resistance and a sleek appearance
• Dual neodymium magnetic drain plugs capture metal particles to protect internal gears
• Large oil level sight glass with calibration plug set to factory oil level to prevent overfilling
• 1/8" NPT port included for temperature sensor installation
• Reinforced ribs integrated into the casting for added structural rigidity
• Increases fluid capacity by 3 to 4 quarts without requiring dipstick modifications

Construction & Design:

The cover is precision die-cast from high-quality A380 aluminum, a material known for its excellent strength-to-weight ratio and thermal conductivity. The cooling fins are an integral part of the casting, ensuring maximum surface area for heat transfer. Reinforced ribs add structural integrity to withstand harsh off-road impacts and heavy loads. The wrinkle black powder coat finish not only enhances corrosion resistance but also provides a durable, attractive surface that resists chipping and fading over time.

Attention to detail is evident in the inclusion of dual magnetic drain plugs, which help trap metallic debris before it can circulate through the differential, reducing wear and potential damage. The large sight glass allows for quick visual fluid level checks, simplifying routine maintenance and ensuring proper lubrication at all times.

Installation & Fitment:

Designed as a direct replacement for stock stamped steel differential covers on AAM 9.25-12 bolt front axles, this aFe Pro Series cover installs with ease using existing mounting points. No modifications to the axle housing or differential are necessary. The increased fluid capacity does not require any dipstick changes, making the upgrade straightforward and hassle-free. Installation hardware is included, though a gasket, spin-on filter, and pickup screen must be sourced separately.

What's Included:

• Pro Series Front Differential Cover with machined cooling fins
• Dual neodymium magnetic drain plugs
• Temperature sensor port plug (1/8" NPT)
• Calibration plug for oil level sight glass
• Installation hardware

Ideal For:

This differential cover is perfect for off-road enthusiasts, heavy-duty truck owners, and anyone seeking to improve the reliability and longevity of their front differential. It is especially beneficial for vehicles subjected to high temperatures, heavy towing, or extreme terrain where enhanced cooling and fluid capacity can prevent overheating and premature component failure.

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