There are 3 choices

Choose One

5.3L
- (9-1/2" ring gear)
  - 3.08 ratio (opt GU4)
  - 3.42 ratio (opt GU6)
6.2L
- (9-3/4" ring gear)
  - (3.23 axle ratio, opt GU5)

Rear Axle Assembly for 2018 GMC Yukon

Attention!

There are 3 choices for the 2018 GMC Yukon Rear Axle Assembly !!!
Choose Your Option

5.3L (9-1/2" ring gear) 3.08 ratio (opt GU4)
5.3L (9-1/2" ring gear) 3.42 ratio (opt GU6)
6.2L (9-3/4" ring gear) (3.23 axle ratio, opt GU5)

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