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2020-2024 GM 2500/3500HD & 2019-2024 Ram 2500/3500 AAM 12" Rear Differential Cover

-Aluminum Fabricated Cover
-Stainless Hardware
-Fill Plug
-Custom Powder Coat Finish
Availability: WCFab Red and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Pricing: $354.00
5 5 1

Customize Your Item

- Powder Coating -
 * required
- Tag (Logo) Finish (PCUCTAG) -
 * required
- Bolt Kit -
 * required
- Replacement OEM Gasket -
 * required


Fabricated Aluminum Differential Cover for Rear Axle on 2020-2024 GM Duramax HD Trucks and 2019-2024 Dodge Ram 2500/3500. Comes finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck.

Replaces the following GM Part Numbers: 84757353

Replaces the following MOPAR Part Numbers: 68458937AB, 68458937AA


Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W14.0000” x H10.0000” x L14.0000”
  • This item ships in its own box.

Customer Reviews

Comment Total Reviews (1)

Great look and added oil capacity
  • Currently 5/5 Stars

Reviewed by:

Product ownership: Less than 1 week

Purchased from: Wehrli Custom Fabrication - WCFab

This differential cover is going to add a bit of capacity to the rear end, so be prepared to put well over stock capacity (I think I needed close to 10pts). Spend the 5 minutes to remove the spare tire to be able to just pour in the new oil with a funnel - I didn't and took forever to hand pump it in and struggled with the top few bolts. This cover also makes me want to get a higher lift just to show it off more. If I could post a picture here, I would, but it's awesome in Metallic Candy Red.

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