How often should I change the fluid in this differential cover?

Refer to your vehicle's service manual for the recommended fluid change intervals. Factors like towing, off-roading, and overall driving conditions can affect how often you need to change the fluid. Using a well-built synthetic gear oil can also extend the change interval.

Does this differential cover come with a gasket?

This aFe differential cover does not include a gasket. Refer to the manufacturer's installation instructions for any sealant requirements.

Is this differential cover compatible with aftermarket suspension modifications?

This differential cover is designed to fit in the factory location. However, if you have aftermarket suspension components, especially those that alter the axle position or travel, check for any potential clearance issues. Always cycle the suspension fully after installation to confirm there is no contact.

aFe Power Pro Series Rear Differential Cover Black w/ Machined Fins 99-13 GM Trucks (GM 9.5-14)

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aFe

Specifications

Brand: aFe
Part #: 46-70372
UPC: 802959465103

aFe

aFe Power Pro Series Rear Differential Cover Black w/ Machined Fins 99-13 GM Trucks (GM 9.5-14)

Name: aFe Power Pro Series Rear Differential Cover Black w/ Machined Fins 99-13 GM Trucks (GM 9.5-14)
Brand: aFe
Price: 394.21 USD
Availability: InStock

$394.21

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 differential cover with magnetic drain plug and sight glass.

Key Features

A356-T6 cast aluminum — strong and durable.
Black powdercoat finish with machined fins — dissipates heat.
Magnetic drain and fill plugs — captures loose particles.
Oil level sight glass — prevents overfilling.
Increased oil capacity — holds 4 quarts vs the factory 3.

⚠️ 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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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. An oil level sight glass and 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 is finished in black powder-coating with machined fins for a distinctive look. 4 Quart Gear Oil Capacity: This cover has about a 4 quart gear oil capacity at the factory fill level, factory cover holds about 3 quarts. Built-in External Fins: Built-in external fins transfer heat from the fluid to the outside air for maximum cooling. 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 Sight Glass: Large oil level sight glass with 1/8'' NPT calibration plug set to the factory fluid level to eliminate overfilling. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.