How to figure rear gear ratios

Differential Gear Ratio Calculator Tools for Tire Diameter, RPM, and Gear Ratio from the technical experts at West Coast Differentials. The rear axle gear ratio is the number of turns that the input of the differential at the driveshaft makes in relation to its output at the rear wheels. Different gear. What gear ratio do I have? You can find your it easily with this method.

The rear axle ratio of your car is instrumental in determining which transmission gear set is best suited for your car. It is also important to know the ratio as well as . How to Determine Gear Ratio. In mechanical engineering, a gear ratio is a direct measure of the ratio of the rotational speeds of two or more interlocking gears. Crawlpedia's gear ratio calculator will find the ratio of your ring and pinion gears as determined by the number of teeth on each gear.

Scroll through the list of popular transmissions to find yours. Or, change input variables (engine RPM, axle gear ratio and tire height) to determine vehicle speed.