AFE Pro Series Rear Differential Cover with Machined Fins and 75w-90 Gear Oil; Black; AAM 11.50/12 Rear Axles (20-21 Sierra 3500 HD)

Description. PRO Guard D2 Synthetic 75W-90 Gear Oil:The supplied gear oil (4 quarts) exceeds the performance requirements of API GL-5 recommended for both open and limited slip applications.

Increased Oil Capacity:This cover has an increased oil capacity over stock for better performance over a longer duration.

Built-in Internal/External Fins:Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling.

Magnetic Plugs:This cover incorporates a magnetic drain and deep reach fill plug to capture loose particles for maximum protection.

Calibration Plug:A calibration plug is set to the factory oil level to prevent overfilling.

Oil Level Sight Glass:A pre-installed oil level sight glass allows quick and easy oil inspection.

Fitment Note:This item fits vehicles equipped with AAM 11.5/12.0 Rear axles.

Emissions Disclaimer:This product does not require a CARB EO#.

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Fitment:

• 2020 GMC Sierra 3500
• 2021 GMC Sierra 3500

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