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SUBURBAN 10
- 4x2
  - 10 bolt cover
  - 12 bolt cover
- 4x4
SUBURBAN 1500
- 4x2
  - 10 bolt cover
    - 2.73 ratio (opt GU2)
    - 3.08 ratio (opt GU4)
    - 3.42 axle ratio (opt GU6)
    - 3.73 ratio (opt GT4)
  - 12 bolt cover
- 4x4
SUBURBAN 20
- 4x2
- 4x4
SUBURBAN 2500
- 4x2
- 4x4

Rear Axle Assembly for 1978 GMC Suburban

Fits: SUBURBAN 1500 4x2 10 bolt cover 3.42 axle ratio opt GU6 (change)

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