Description
Dana 80 Rear Billet Aluminum Differential Cover – Heavy Duty 10-Bolt
Upgrade your Dana 80 rear axle with a premium Alien Machine Worx Dana 80 Rear Billet Aluminum Differential Cover, precision CNC machined in-house from a solid block of 6061-T6 aluminum.
Built for one of the toughest heavy-duty rear axles ever put under a pickup, our Dana 80 rear differential cover combines serious protection with a clean, aggressive billet appearance. The Dana 80 is a heavy-duty full-floating axle featuring a massive 11.25-inch ring gear and is well known for its use in high-torque diesel trucks, heavy towing applications, work trucks, and extreme off-road builds.
Unlike the factory stamped-steel cover or conventional cast-aluminum aftermarket covers, the Alien Machine Worx Dana 80 cover is machined from solid billet aluminum, providing a strong, rigid design while showcasing the premium machining and finish that makes it stand out underneath your truck.
Features
- CNC machined from a solid block of 6061-T6 billet aluminum
- Designed specifically for the Dana 80 10-bolt rear axle
- Massive 11.25-inch ring gear Dana 80 application
- Built for heavy-duty towing, hauling, diesel performance, and off-road applications
- Strong, rigid billet construction
- Precision-machined sealing surface for a proper fit
- Integrated fill plug for easy servicing
- Integrated drain plug for cleaner and easier fluid changes
- Includes stainless steel mounting hardware
- Aggressive machined billet appearance
- Proudly CNC machined and manufactured in-house in the USA
Common Rear Axle Applications
The Dana 80 rear axle can be found in a variety of heavy-duty trucks, including:
- 1994–2002 Dodge Ram 3500
- 1994–2002 Dodge Ram 2500 models equipped with the Dana 80 rear axle
- Ford F-350 DRW models equipped with the Dana 80 rear axle
- Ford F-450 models equipped with the Dana 80 rear axle
- Select Chevrolet/GMC C3500HD and other heavy-duty applications equipped with a Dana 80 rear axle
Important Fitment Information
This differential cover is designed for Dana 80 rear axles.
Please verify your axle before ordering. Dodge/Ram, Ford, and GM heavy-duty trucks were available with multiple rear axle configurations depending on model year, engine, transmission, “weight rating”, and vehicle configuration.





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