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

aFe Pro Series Rear Differential Cover

2003–2007 Dodge Ram 2500 / Dodge Ram 3500

46-70392-WL

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 enhance the durability and performance of your truck’s rear differential, this cover offers increased fluid capacity and superior cooling capabilities. Ideal for enthusiasts and professionals who demand reliability under heavy loads or extreme driving conditions, it helps extend the life of your differential by maintaining optimal operating temperatures and simplifying maintenance.

Equipped with machined cooling fins and supplied with high-quality synthetic gear oil, this differential cover not only improves heat dissipation but also protects internal components from wear and damage. Its robust construction and thoughtful features make it a smart investment for anyone looking to enhance their Ram’s drivetrain resilience and efficiency.

Key Features:

The aFe Pro Series Rear Differential Cover combines advanced engineering with practical design to deliver outstanding performance benefits. Key features include:

• Durable cast aluminum construction for strength and lightweight performance
• Wrinkle black powder-coated finish for corrosion resistance and a sleek appearance
• Machined cooling fins integrated into the cover to improve heat dissipation
• Increased fluid capacity to reduce operating temperatures and extend differential life
• Magnetic drain plug to capture metal particles and simplify fluid changes
• Temperature sensor port (1/8" NPT) for easy monitoring of differential fluid temperature
• Reinforced ribs for added structural integrity under heavy-duty use
• Includes 4 quarts of PRO Guard D2 synthetic 75W-90 gear oil for optimal lubrication
• Large oil level sight glass with calibration plug set to factory specifications to prevent overfilling

Construction & Design:

Manufactured from rugged die-cast A380 aluminum, the aFe Pro Series Rear Differential Cover is engineered for durability and efficient thermal management. The cast-in cooling fins and reinforced ribs provide exceptional strength while maximizing surface area for heat dissipation. The wrinkle black powder-coated finish not only protects against corrosion but also maintains a clean, professional look that complements your truck’s undercarriage.

The magnetic drain plug is strategically positioned to attract and hold metal debris, helping to protect your differential gears from premature wear. Additionally, the integrated temperature sensor port allows for real-time monitoring of fluid temperatures, enabling proactive maintenance and preventing overheating.

Installation & Fitment:

This differential cover is a direct fit replacement for Dodge Ram 2500 and Ram 3500 models from 2003 through 2007, requiring no modifications for installation. It bolts directly onto the factory differential housing, making installation straightforward for experienced DIYers or professional mechanics. The increased fluid capacity does not require any changes to the vehicle’s dipstick or fill procedures, ensuring a hassle-free upgrade.

What's Included:

• aFe Pro Series Rear Differential Cover with machined cooling fins
• Magnetic drain plug
• Temperature sensor port plug (1/8" NPT)
• 4 quarts of PRO Guard D2 synthetic 75W-90 gear oil
• Calibration plug for oil level sight glass

Ideal For:

This rear differential cover is ideal for Dodge Ram 2500 and 3500 owners who frequently tow, haul heavy loads, or drive in demanding conditions where heat buildup can compromise differential performance. It is also well-suited for off-road enthusiasts and anyone seeking to improve the longevity and reliability of their truck’s drivetrain components through enhanced cooling and maintenance convenience.