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GM 9.375 REAR DROPOUT

55-59 Series 31,32 (4x2 & 4x4)

60-64 C10

60-62 K10

Ring gear diameter: 9.375”

Pinion shaft diameter/splines: 1.438/17

Axle shaft diameter/splines: 1.28/17

Available ratios: 3.38, 3.70, 3.90, 4.11