MUSTANG IRS SUPER 8.8-INCH RING AND PINION SET - 3.73 RATIO M-4209-88373A

Fits 2015-2016 Mustang Super 8.8-inch IRS center section

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

Made in United States in Ford's Sterling Axle Plant

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

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 and 3.73 ratio gears. Use differential M-4204-MT or M-4204-M