Ford Racing 15-25 Mustang GT 3.73 Ratio 8.8in Ring and Pinion Set

Ford Racing ring and pinion sets are engineered, manufactured, and tested for maximum performance. These ring and pinion sets are finished in a black oxide coating for corrosion resistance, and are available in many different ratios to fit a variety of Ford differentials. ** Note: 3.15 Ratio Differential not compatible with 3/31, 3.55, 3.73 and 4.09 ratio gears. Use differential M-4204-MT or M-4204-M. * This part is designed and intended for competition use only. It should not be installed on a vehicle that is driven on public roads and highways. Installation of this art on a vehicle driven on public roads and highways is likely to violate U.S. and Canadian laws and regulations relating to motor vehicle emissions.This Part Fits: Year Make Model Submodel 2015-2018 Ford Mustang EcoBoost 2015-2018 Ford Mustang EcoBoost Premium 2015-2018 Ford Mustang GT 2015 Ford Mustang GT 50 Years Limited Edition 2015-2018 Ford Mustang GT Premium 2015-2018 Ford Mustang Shelby GT350 2015