There are 4 choices

Choose One

SIERRA 2500 PICKUP
- 3.42 ratio (opt GU6)
- 3.73 ratio (opt GT4)
SIERRA DENALI 2500
- 3.42 ratio (opt GU6)
- 3.73 ratio (opt GT4)

Rear Axle Assembly for 2021 GMC Sierra 2500 HD

Attention!

There are 4 choices for the 2021 GMC Sierra 2500 HD Rear Axle Assembly !!!
Choose Your Option

SIERRA 2500 PICKUP 3.42 ratio (opt GU6)
SIERRA 2500 PICKUP 3.73 ratio (opt GT4)
SIERRA DENALI 2500 3.42 ratio (opt GU6)
SIERRA DENALI 2500 3.73 ratio (opt GT4)

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