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SIERRA 3500 PICKUP
- dual rear wheels
  - Chassis Cab (without box)
    - Without wide track
      - 3.73 ratio (opt GT4)
      - 4.10 ratio (opt GT5)
    - wide track (opt GTY)
      - 3.73 ratio (opt GT4)
      - 4.10 ratio (opt GT5)
  - Pickup (with box)
    - 3.73 ratio (opt GT4)
    - 4.10 ratio (opt GT5)
- single rear wheels
  - 3.73 ratio (opt GT4)
  - 4.10 ratio (opt GT5)
SIERRA DENALI 3500
- (full-floating)
  - (11.5" ring gear)
    - dual rear wheels
      - 3.73 ratio (opt GT4)
      - 4.10 ratio (opt GT5)
    - single rear wheels
      - 3.73 ratio (opt GT4)
      - 4.10 ratio (opt GT5)

Rear Axle Assembly for 2019 GMC Sierra 3500

Fits: SIERRA 3500 PICKUP dual rear wheels Chassis Cab without box wide track opt GTY 3.73 ratio opt GT4 (change)

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