Fits 2015-2019 Mustang  Super 8.8-inch IRS center section 

1. Includes OEM crush sleeve and pinion nut  
   

2. Requires M-4210-B3 Mustang 8.8-inch ring-gear and pinion install kit 

3. Made in United States in Ford's Sterling Axle Plant 

4. OEM Quality - our superior surface finish, hardening and manufacturing consistency provide the strongest and quietest gears in the market.   

5. Requires aftermarket calibration if vehicle is not originally equipped with this gear ratio

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