G2 Axle and Gear BRUTE GM 8.5/8.6" Differential Cover - 40-2021MB

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  • G2 Axle and Gear | Part Number: G/240-2021MB
  • Popular Axle Manufacture:GM
  • Axle Location:Rear
  • Fitment:Universal Fit
  • Finish Type:Powder Coated
  • Type Of Material:Aluminum
  • Axle Type:GM 10 Bolt 8.5 Inches|GM 10 Bolt 8.6 Inches
  • Availability:In Stock
  • Oil Capacity:Extra Capacity


G2 aluminum differential covers are designed to not only protect your ring & pinion, they are designed to help cool your gear oil for prolonged bearing life. Made from high strength heat treated aluminum to withstand direct hits, these covers help protect your investment while adding a distinct look to your vehicle.

Customer Reviews

3.8 3.8
5 Customer ratings
5.0 Great Service

Easy online purchase and store pickup. Best price I could find for a great product.

from Southern California |


Question & Answers

8 Answered questions

Q: hey guys Im looking for a cover for my 05 sierra 1500 10 bolt wanna make sure this will fit Thanks Rob Answer this question

A: Yes it will fit.

Answered by Kelly from 4WP Corporate Headquarters on 06/22/2021

Q: Will this cover allow for my oil compared to stock unit? I'm having gears installed as well speak with your company and need to purchase one of your covers Answer this question

A: Hello Kyle Yes it is a larger capacity cover allows for and extra half a quart of fluid. Thanks

Answered by Rody on 07/23/2015

Q: Does this cover come with new hardware, bolts specifically, like the mag hytec diff cover? Answer this question

A: Hello Yes they do include the hardware with the cover. Thanks

Answered by Rody on 02/13/2015

Q: I have a 2008 2500 HD serria slt Gmc duramax will this fit? Answer this question

A: Hello The cover you need is for the AAM 14 bolt 11.5 inch part number G/240-2024MB

Answered by Rody on 12/06/2014

Q: Will this fit a 2014 1500? Answer this question

A: Hello Azshoop, The G2 Axle and Gear GM 8.5in./8.6in. 10 Bolt Ball Milled Aluminum Cover will fit a 2014 GM 1500 rear 10 bolt 8.5/8.6 rear axle.

Answered by Dave on 10/07/2014


G2 Axle & Gear uses the strongest and latest generation materials to manufacture products capable of handling heavy loads. When it comes to axle assemblies, core lockers, driveshafts and sway bars, G2 is the first name in durability and reliability. Off-roading can heap punishment on a Jeep and G2's laser-cut components offer superior handling on challenging terrain and on-road drives. Parts are easy to install and easy to service and above all, they remain operational in adverse environments. Shop G2 Axle and Gear Now


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