Kaaz 1.5 Way Rear Differential for 2015+ Mustang

Loaded differential housing for 2015-2017 Mustang IRS Fits Mustang GT and V-6 with manual transmission Iron housing with aluminum cover Includes 3.73:1 ratio gear set M-4209-88373A and Torsen differential M-4204-MT Original Equipment on 2015 Mustang GT Performance Pack Custom calibration required for speedometer and shift corrections Automatic transmission requires Pinion Flange Kit M-4851-M8A WARNING: 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 part on a vehicle driven on public roads and highways is likely to violate US and Canadian laws and regulations relating to motor vehicle emissions.