There are 4 choices

Choose One

Driver Side select full locking differential (opt G94)
- diesel (3.42 ratio, opt GU6)
- gasoline (3.73 ratio, opt GT4)
Without Driver Side select full locking differential
- 3.42 ratio (opt GT4)
- 3.73 ratio (opt GU6)

Rear Axle Assembly for 2025 GMC Sierra 2500 HD

Fits: Driver Side select full locking differential opt G94 diesel 3.42 ratio, opt GU6 (change)

Filters (0 Items)

Sort By:

Fraud Notice: We do not sell our parts on third party sites, marketplaces, social media sites, or message boards. If you are approached by anyone claiming to be from allusedparts.com from an external source — be aware. We only sell our products though this website.