The ratio calculator will help you determine the ratio between the ring gear and the pinion gear in the differential case on the rear axle of your vehicle.
Calculate the speed ratio you need!
In a rear-wheel-drive vehicle, the rear end axle plays a crucial role in transmitting power to the rear wheels. To determine the gear ratio of this axle, you need to use the number of teeth in the ring gear and divide it by the number of teeth in the pinion gear. This calculation gives you a “[result] to 1” ratio, which represents how many turns of the pinion gear are required for one turn of the ring gear.
For instance, let’s say the pinion gear has 41 teeth and the ring gear has 11 teeth. To find the gear ratio, divide the number of teeth in the pinion gear by the number of teeth in the ring gear: 41 divided by 11 equals approximately 3.73. Thus, the gear ratio is written as 3.73:1. This means that for every turn of the ring gear, the pinion gear makes 3.73 turns.
