aFe Pro Series Rear Differential Cover: Dodge Ram 2500 / Ram 3500 2003 - 2007 w/ Machined Fins

aFe Pro Series Rear Differential Cover

2003–2007 Dodge Ram 2500 / Dodge Ram 3500

46-70392

Overview:

The aFe Pro Series Rear Differential Cover is a premium upgrade designed specifically for 2003 to 2007 Dodge Ram 2500 and Ram 3500 models. Crafted to replace the stock stamped steel cover, this finned aluminum differential cover enhances durability, increases fluid capacity, and improves cooling efficiency. Ideal for truck owners seeking to extend the life of their rear differential, this cover helps maintain optimal operating temperatures under demanding conditions, ensuring reliable performance and easier maintenance.

With its robust construction and thoughtful design features, the aFe Pro Series cover is perfect for enthusiasts and professionals who demand both strength and style from their drivetrain components.

Key Features:

This differential cover incorporates advanced engineering to provide superior protection and functionality:

• Constructed from rugged die-cast A380 aluminum for exceptional strength and durability
• Machined cooling fins cast into the cover to increase surface area and improve heat dissipation
• Wrinkle black powder-coated finish for corrosion resistance and a sleek, aggressive appearance
• Increased fluid capacity by 3 to 4 quarts to enhance lubrication and cooling
• Magnetic drain plug to capture metal particles and simplify fluid changes
• 1/8" NPT temperature sensor port for easy monitoring of differential fluid temperature
• Reinforced ribs integrated into the casting for added structural integrity
• Large oil level sight glass with calibration plug set to factory specifications to prevent overfilling
• Dual neodymium magnetic plugs for maximum gear protection
• Designed to fit AAM 11.5-inch 14-bolt rear axles found in Dodge Ram 2500 and 3500 trucks

Construction & Design:

The aFe Pro Series Rear Differential Cover is precision-engineered from die-cast A380 aluminum, a material known for its excellent strength-to-weight ratio and thermal conductivity. The cooling fins are cast directly into the cover, maximizing heat transfer away from the differential fluid to keep temperatures lower during heavy-duty use. Reinforced ribs provide additional rigidity to withstand impacts and prevent warping under stress.

The wrinkle black powder-coated finish not only protects against corrosion and environmental damage but also adds a rugged, professional look that complements the aggressive styling of Dodge Ram trucks. The magnetic drain plug and temperature sensor port are seamlessly integrated to enhance functionality without compromising the cover’s structural integrity.

Installation & Fitment:

Installation of the aFe Pro Series Rear Differential Cover is straightforward and designed to be a direct replacement for the factory stamped steel cover on 2003–2007 Dodge Ram 2500 and 3500 models equipped with AAM 11.5-inch 14-bolt rear axles. No modifications to the vehicle or differential are required. The increased fluid capacity does not necessitate any changes to the existing dipstick or fill procedures.

All necessary hardware for mounting is included, making it easy to upgrade your differential cover and benefit from improved cooling and protection in just a few hours.

What's Included:

• One aFe Pro Series Rear Differential Cover with machined cooling fins
• Magnetic drain plug
• Temperature sensor port plug (1/8" NPT)
• Calibration plug for oil level sight glass
• Mounting hardware kit

Ideal For:

This differential cover is ideal for Dodge Ram 2500 and 3500 owners who frequently tow, haul heavy loads, or drive in off-road or high-stress conditions. It is also well-suited for enthusiasts looking to enhance the durability and longevity of their rear differential while adding a custom, performance-oriented appearance. Whether used for daily driving, work, or recreational purposes, the aFe Pro Series cover provides reliable protection and improved thermal management to keep your drivetrain running smoothly.