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SIERRA 2500 PICKUP
- fill plug inner cover
  - (11.50" ring gear)
    - 3.73 ratio (opt GT4)
    - 4.10 ratio (opt GT5)
- Without fill plug inner cover
  - (10.50" ring gear)
    - 3.73 ratio (opt GT4)
    - 4.10 ratio (opt GT5)
SIERRA DENALI 2500
- model year break point (opt AVF)
  - fill plug inner cover
    - (11.50" ring gear)
      - (3.73 ratio, opt GT4)
  - Without fill plug inner cover
    - (10.50" ring gear)
      - 3.73 ratio (opt GT4)
      - 4.10 ratio (opt GT5)
- Without model year break point
  - fill plug inner cover
    - (11.50" ring gear)
      - 3.73 ratio (opt GT4)
      - 4.10 ratio (opt GT5)
  - Without fill plug inner cover
    - (10.50" ring gear)
      - 3.73 ratio (opt GT4)
      - 4.10 ratio (opt GT5)

Rear Axle Assembly for 2015 GMC Sierra 2500 HD

Fits: SIERRA 2500 PICKUP fill plug inner cover 11.50 ring gear 4.10 ratio opt GT5 (change)

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