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4x2
4x4
- front axle
  - GM
  - Spicer
- rear axle
  - 3.21 ratio
  - 3.73 ratio
  - 4.11 ratio
  - 4.56 ratio
  - 5.13 ratio

Ring Gear and Pinion for 1978 Chevrolet K20 Pickup

Fits: 4x4 rear axle 4.56 ratio (change)

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