Two Speed Gear Mesh Calculator
When using a two speed transmission setup, it is important that the proper gear combination be chosen to provide the proper mesh for both first and second gear sets. If not, one set will mesh, but the other set will not mesh correctly and gear stripping may result.
Enter the three gear tooth count values you have, leaving one (and only one) field blank. The fields are color-coded to the gears to make it easier. The proper gear tooth for the missing value will be calculated. The ratios for each set of gears will also be calculated.