How does the increased oil capacity benefit my truck?

The aFe diff cover holds about 5 quarts of gear oil, which is more than the factory cover's 4-quart capacity. This extra oil helps to improve lubrication and cooling, especially under heavy use. Keeping the oil cooler extends the life of your differential components.

What is the purpose of the magnetic drain and fill plugs?

The magnetic drain and fill plugs are designed to capture any loose metallic particles circulating in the differential oil. This helps to prevent wear and damage to the gears and bearings. Regularly cleaning these plugs during oil changes will help prolong the life of your differential.

How do I prevent overfilling the differential when installing this cover?

This cover includes a 1/8" NPT calibration plug set to the factory fluid level. Once you've filled the differential, remove this plug. When oil starts to trickle out of the hole, you've reached the correct fill level. This eliminates the risk of accidental overfilling.

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aFe

Specifications

Brand: aFe
Part #: 46-70350
UPC: 802959464939

aFe

aFe Power Street Ser Rear Diff Cover Raw w/Mach Fin 2017 Ford Diesel Trucks V8-6.7L(td) Dana M275-14

Name: aFe Power Street Ser Rear Diff Cover Raw w/Mach Fin 2017 Ford Diesel Trucks V8-6.7L(td) Dana M275-14
Brand: aFe
SKU: afe-afe-power-street-ser-rear-diff-cover-raw-w-mach-fin-2017-ford-diesel-trucks--t14-133277
Price: 362.47 USD
Availability: BackOrder

$362.47

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Strong cast-aluminum diff cover with machined fins. Adds extra oil capacity and magnetic plugs to protect your Ford's rear end.

Key Features

A356-T6 cast aluminum — strong and durable
Reinforcing ribs — adds extra strength
Increased oil capacity — holds about 5 quarts
Internal and external cooling fins — maximizes cooling of the differential oil
Magnetic drain and fill plugs — captures loose particles for maximum protection
Calibration plug — prevents overfilling

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will it fit your car?

Fits these vehicles

Ford F-250 Super Duty 2017-2023
Ford F-350 Super Duty 2017-2023

About this part

Product Details

aFe Power's new rear differential cover brings performance engineering to the protection of your axle's differential. This differential cover is constructed out of durable A356-T6 cast aluminum with reinforcing ribs for maximum strength. Mounting hardware is included for a hassle-free installation. A calibration plug set to the factory level prevents overfilling of the differential. A magnetic drain plug and a deep reach magnetic fill plug are provided for maximum protection. This cover has a raw finish with machined fins for a distinctive look. 5 Quart Gear Oil Capacity: This cover has about a 5 quart gear oil capacity at the factory fill level, factory cover holds about 4 quarts. Built-in Cooling Fins: Built-in internal and external cooling fins increase surface area to maximize cooling of the differential oil. Magnetic Drain/Fill Plug: This system incorporates a magnetic drain and deep reach fill plug that captures loose particles for maximum rear-end protection. Oil Level calibration plug: A 1/8" NPT calibration plug is set to the factory fluid level which eliminates accidental overfilling.