Differential Cover

aFe Power’s Pro Series front and rear differential covers bring performance-driven protection to your drivetrain. Constructed from durable cast aluminum and designed with reinforced ribs, these covers offer enhanced strength and improved heat dissipation for demanding driving conditions. This is a complete, ready-to-install kit that includes front and rear differential covers, all necessary hardware, and 6 quarts of 75W-90 premium PROGUARD Synthetic gear oil —everything you need for a full service in one convenient package. The supplied gear oil exceeds the performance requirements of API GL-5 recommended for both open and limited slip applications. These covers have 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 system incorporates magnetic drain and deep reach fill plugs to capture loose particles for maximum protection. Each cover uses a calibration plug set to the factory oil level to eliminate overfilling. Each cover includes an oil level sight glass that allows for quick and easy oil inspection.

Additional Information

aFe POWER Front & Rear Diff GUARD Package w/ Oil GM Diesel Trucks 11-19 V8 (AAM 9.25-12 & AAM 11.5-14)

• Black Powder Coat Finish with Machined Fins
• Constructed from Durable Cast Aluminum
• Includes (Front) AAM 9.25”-12 Bolt IFS Cover & (Rear) AAM 11.5”-14 Bolt Cover
• Includes 6 Quarts of PROGUARD Synthetic 75W-90 Gear Oil for Front & Rear Axles
• Large Oil Level Sight Glass and Calibration Plug Set to the Factory Oil Level Prevents Overfilling
• Neodymium Magnetic Drain and Fill Plugs for Maximum Gear Protection

Important Note Regarding Oils, Additives, Aerosols & Liquids

This listing may contain a product with transport restrictions. Items containing oils, additives, aerosols, adhesive or other liquid/chemical-based products may be subject to shipping restrictions depending on their current warehouse location, carrier requirements, and applicable transport regulations.

Some liquid and aerosol products are restricted for air freight or certain road freight routes and may require alternative transport methods or dispatch from a specific warehouse. While the majority of these items ship without issue, these factors can occasionally affect available shipping options or delivery timeframes.

If you are working to a tight deadline, require urgent delivery, or are unsure whether a product can be shipped to your location, we recommend contacting the StreetFX team prior to placing your order so we can confirm availability and the most suitable freight option.

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Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

aFe POWER Front & Rear Diff GUARD Package w/ Oil GM Diesel Trucks 11-19 V8 (AAM 9.25-12 & AAM 11.5-14)