We sell a variety of Winters Quick Change Gears sizes here at CrateInsider. In order to ensure you have the correct gear size, you have to do a little math! There are several formulas for computing the correct gear for your needs. If you have misplaced the box for your gears, or forgot to label them - we also have a quick formula to determine which gear set you have. Below, you will find these formulas:

We have created a chart to help you determine the gear number you will need. In fact, our chart is unique because it is in an easy to read format and contains information for 4.11, 4.12, 4.57, and 4.86 Ring and Pinion Ratios. 

To receive the chart, just click below for an instant download.