How does the calibration plug work?

The 1/8" NPT calibration plug is set to the factory fluid level. This eliminates accidental overfilling, which can cause foaming and reduce lubrication effectiveness.

What kind of maintenance does this differential cover require?

The magnetic drain plug captures loose particles, so it's a good idea to inspect and clean the plug during regular gear oil changes. Refer to the manufacturer's instructions for recommended gear oil change intervals.

Does this cover come with a gasket?

No, this differential cover does not include a gasket. Refer to the manufacturer's installation instructions for sealant recommendations.

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aFe

Specifications

Brand: aFe
Part #: 46-70380
UPC: 802959465325

aFe

aFe Power Rear Diff Cover Raw Finish 2017 Ford F-350/F-450 V8 6.7L (td) Dana M300-14 (Dually)

Name: aFe Power Rear Diff Cover Raw Finish 2017 Ford F-350/F-450 V8 6.7L (td) Dana M300-14 (Dually)
Brand: aFe
SKU: afe-afe-power-rear-diff-cover-raw-finish-2017-ford-f-350-f-450-v8-6-7l-td-dana-m-t14-136078
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 magnetic drain/fill plugs and increased oil capacity.

Key Features

A356-T6 cast aluminum — strong and well-built
Raw finish with machined fins — distinctive look
Magnetic drain and deep reach fill plug — captures loose particles
Calibration plug set to the factory level — prevents overfilling
Increased oil capacity — holds about 5 quarts of gear oil
Mounting hardware included — hassle-free installation

⚠️ 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-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.