aFe Front AAM 9.25-12 & Rear AAM 11.5/11.8-14 Diff Guard Package w/ Oil

2013–2018 RAM 2500/3500 6.7L Cummins

Part #: 46-7701AB

Overview

The aFe Front AAM 9.25-12 & Rear AAM 11.5/11.8-14 Differential Guard Package with Oil is a comprehensive drivetrain protection solution designed specifically for 2013–2018 RAM 2500 and 3500 trucks equipped with the 6.7L Cummins engine. This premium kit combines heavy-duty front and rear differential covers with high-quality synthetic gear oil, providing enhanced durability, improved heat dissipation, and extended service intervals. Ideal for truck owners who demand reliable performance under heavy loads, off-road conditions, or towing, this package ensures your differentials remain protected and properly lubricated for maximum longevity.

Key Features

Engineered to deliver superior protection and performance, the aFe differential guard package offers the following key features:

• Durable cast aluminum construction with reinforced ribs for increased strength and impact resistance
• Enhanced oil capacity compared to factory covers, allowing for better lubrication and cooling over extended use
• Built-in internal and external cooling fins that efficiently transfer heat from the gear oil to ambient air, reducing operating temperatures
• Magnetic drain plugs designed to capture and hold metal particles, protecting internal differential components from wear
• Deep reach fill plugs for easy and thorough oil filling and maintenance
• Calibration plug sets to the factory oil level, preventing overfilling and ensuring optimal fluid volume
• Integrated oil level sight glass for quick, convenient visual inspection of gear oil condition and level
• Includes 8 quarts of 75W-90 PROGUARD Synthetic gear oil that exceeds API GL-5 specifications for both open and limited slip differentials
• Complete installation kit with all necessary hardware for a straightforward upgrade

Construction & Design

The differential covers are crafted from high-grade cast aluminum, chosen for its excellent strength-to-weight ratio and superior thermal conductivity. Reinforced ribbing throughout the design adds structural rigidity to withstand harsh impacts and off-road abuse. The integrated cooling fins maximize surface area to dissipate heat effectively, helping maintain optimal operating temperatures and preventing premature gear oil breakdown. The magnetic drain plugs are strategically placed to capture ferrous debris, while the deep fill plugs ensure proper fluid levels are maintained. The sight glass provides a practical way to monitor oil condition without disassembly, simplifying routine maintenance.

Installation & Fitment

This package is engineered for direct fitment on 2013 through 2018 RAM 2500 and 3500 models equipped with the 6.7L Cummins engine, covering front AAM 9.25-12 and rear AAM 11.5/11.8-14 differentials. Installation is straightforward and can typically be completed with basic hand tools. The kit includes all necessary mounting hardware and detailed instructions, allowing for a hassle-free upgrade without the need for modifications or specialized equipment. The included synthetic gear oil enables a full differential service during installation, ensuring your drivetrain is protected and properly lubricated from the start.

What's Included

• Front differential cover for AAM 9.25-12 axle
• Rear differential cover for AAM 11.5/11.8-14 axle
• All required mounting hardware
• 8 quarts of 75W-90 PROGUARD Synthetic gear oil
• Magnetic drain plugs and deep reach fill plugs
• Calibration plugs set to factory oil levels
• Oil level sight glasses for both front and rear covers

Ideal For

This differential guard package is perfect for RAM 2500 and 3500 owners who frequently tow heavy loads, drive off-road, or operate their trucks in demanding environments. It is especially beneficial for those seeking to extend the life of their drivetrain components through improved cooling, increased oil capacity, and superior protection against contaminants. Whether you’re a professional contractor, off-road enthusiast, or daily driver, this kit offers peace of mind and enhanced durability for your truck’s front and rear differentials.