aFe 46-70030 Diiferential Cover Rear for 94-02 Dodge Cummins/99-07 F-350 Dana 80

Vehicle Fitment

• 1994-2002 Dodge Ram 2500/3500 (Cummins 5.9L / 6.7L, Dana 80 rear axle)
• 1999-2007 Ford F-350 / F-450 Super Duty (Power Stroke 7.3L / 6.0L / 6.7L, Dana 80 rear axle)

Fitment Notes

• Rear differential cover only; fits vehicles equipped with Dana 80 rear axle housing
• Raw finish version -- can be left raw or painted / protected for corrosion resistance
• Includes O-ring seal; RTV gasket supplied for leak prevention
• Optional accessories (sight glass, deep reach fill plug) available separately

Features

• Die-cast A380 aluminum construction with reinforced ribs and machined fins for strength and cooling
• Built-in internal and external cooling fins to dissipate heat from diff fluid
• Magnetic drain plug captures metal particles for improved gear protection
• Calibration/fill plug set at factory fluid level to prevent overfilling
• About 5-quart fluid capacity, increased over standard stock cover (~4 quarts stock)
• Comes with all necessary hardware and O-ring for a leak-free install
• Pre-installed sight-glass or "oil level window" to monitor fluid level visually
• Raw finish for custom finish or quick corrosion treatment

Specifications

• Part Number: 46-70030
• Material: Die-cast A380 aluminum
• Finish: Raw with machined fins
• Lube Capacity: ~5 quarts
• Fitment Axle: Dana 80 rear axle
• Includes: Magnetic drain plug, calibration plug, O-ring gasket, mounting hardware
• Weight: ~14 lbs empty

Included Components

• 1x Rear differential cover (aFe 46-70030)
• O-ring seal
• Magnetic drain plug
• Calibration plug / fill plug
• Hardware kit (bolts, etc.)
• Installation instructions

Product Description

The aFe 46-70030 Street Series Differential Cover is designed to upgrade stock differential protection and performance for trucks equipped with the Dana 80 rear axle. This raw finish, machined-fin aluminum cover provides enhanced cooling via internal and external finning, adds roughly one quart extra fluid capacity over the standard cover, and includes a magnetic drain plug plus calibration/fill plug to make maintenance simpler.

Built with a lightweight yet strong A380 die-cast aluminum body and reinforced ribs, it not only strengthens the rear end but helps manage axle temperature under towing, heavy loads, or demanding terrain. With all hardware included and designed to bolt in place of factory cover seams, the 46-70030 is a direct replacement that offers both functional performance and real-world durability.