We used custom hubs to stop the spline breakage but still the wheel bearing was an issue. Well say goodbye to both issues, as the new Mustang has a full 32 spline going into the hub and a beefy 34 spline into the diff, up from the 31 spline of yesteryear. Learn More
The GForce Engineering fully-fabricated 9” IRS for the 2015-2016 S550 Mustang is a complete bolt-in independent rear suspension that replaces your drive-line from the transmission back. Includes a fabricated 9” housing that bolts to the stock differential mounting points. Learn More
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