This 3.55:1 Ratio Ford Racing Ring and Pinion Gear set will fit all 2015-2025 Mustangs equipped with an 8.8" Independent Rear Suspension (IRS), including V6, EcoBoost and GT models. A master bearing kit is recommended by most installers, especially on high mileage vehicles.

Are you looking to upgrade to a stronger set of rear gears? Then look no further than installing a set of genuine Ford Racing Gears in your 2015-2025 S550 & S650 Mustang. Ford Racing Ring and Pinion Gears are perfect for street, road, and race applications.

Manufactured in the USA, these Ford Racing Mustang ring and pinion gears feature a super strong forged construction, CNC cut & lapped gear teeth, and are completed in a black oxide finish to resist corrosion.

Changing the rear axle gear ratio will throw off the calibration of your Mustangs speedometer, but a Mustang Handheld Tuner is a quick and easy way to fix this issue.

These Ford Racing 3.55 gears are not compatible with a 3.15 ratio differential - use differential M-4204-MT or M-4204-M.