Performance ring and pinion sets are engineered, manufactured, and tested for maximum performance. These high-quality differential components are suitable for race, street, and off-road use. The superior quality of these gear sets is the result of years of development, outstanding design, and state-of-the-art manufacturing methods. These ring and pinion sets are available in many different ratios to fit a variety of differentials. Plus, the  ring and pinion sets are perfectly matched to provide you with reliable and quiet operation