GEAR RATIOS CALCULATOR

Desired shift RPM:
First gear ratio:

Four Speed   Five Speed   Six Speed w/OD
Optimum 2nd Gear Ratio: Optimum 2nd Gear Ratio: Optimum 2nd Gear Ratio:
Optimum 3rd Gear Ratio: Optimum 3rd Gear Ratio: Optimum 3rd Gear Ratio:
Optimum 4th Gear Ratio: Optimum 4th Gear Ratio:
Optimum OverDrive Ratio: