M-4209-88355A
Fits 2015-2021 Mustang Super 8.8-inch IRS center section
Includes OEM crush sleeve and pinion nut
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, 3.73 and 4.09 ratio gears. Use differential M-4204-MT or M-4204-M
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