Sierra Heavy Duty 5 Speed Straight Cut Gear Kit - Heavy Duty

Ratios are: 1st 2.390 2nd 1.690 3rd 1.210 4th 1.1 5th .930 **up to 250hp 1st 2.2 2nd 1.54, 3rd 1.21, 4th 1.1 5th 0.87 1st 2.05 or combination of above

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