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20-21 GM 2500HD/3500HD AFE Pro Series Rear Differential Cover

Fits: 2020-2021 GM 2500HD/3500HD (14 bolt-AAM 11.5/12 axle) 

The AFE Pro Series Rear Differential Cover will give the rear of your 2020-2021 GM 2500HD/3500HD a whole new look. This differential cover features a black powder coating with machined fins for a unique look. With internal and external fins cast into the cover for better heat transfer, this cover includes a magnetic drain plug. Check out the fluid level and the condition of the gear lube without draining the cover with the oil level sight. Prevent overfilling of the differential with the calibration plug is set to the factory oil level. 

  • Oil level sight glass 
  • Increased oil capacity 
  • Cast aluminum construction 
  • Drain plug with neodymium magnet 
  • Black powder coat finish with machined fins 
  • Calibration plug set to factory oil level to prevent overfilling 

AFE: 46-71260B

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