2015-2024 Mustang Ford Performance 3.73 Gears by Ford Performance

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Details   |   Reviews
2015-2024 Mustang Ford Performance 3.73 Gears

Add a set of Ford Performance 3.73 gears to your high horsepower 2015-2024 Mustang to get maximum performance!

Item #M420988373A
MPN# M-4209-88373A

Everyday Low Price: $219.99

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Made in the USA


  • Ford Performance Quality
  • OE Ford Gears
  • Made in the USA!


  • Heavy Duty Construction
  • Includes Pinion Nut & Crush Sleeve
  • Fits 8.8" Mustang Rear End

 What's in the Box

  • (1) 3.73 Pinion Gear
  • (1) 3.73 Ring Gear
  • (1) Crush Sleeve
  • (1) Pinion Nut

Increased Acceleration
If you are looking to give your S550 or S650 better acceleration and more performance, a set of 2015-2024 Mustang Ford Performance 3.73 gears can help! These IRS rear end gears fit the Ecoboost, V6, and GT models with 8.8" rear ends. This 3.73 rear end gear kit is perfect for high horsepower applications and includes a new pinion gear, a ring gear, a crush sleeve, and a pinion nut to get your Mustang accelerating quicker than ever!

OEM Quality
Ford Performance 8.8" Mustang gears are the choice of championship road racing and drag racing teams including Multimatic Motorsports and Kurgan Motorsports. When your plans call for an 8.8" Mustang Rear Gear look for the only brand good enough to wear the Ford oval, Ford Performance Parts!

Speedometer Correction
After installation of rear gears, you will need to correct the speedometer. There are different methods to do this depending on year model.

1979-1995 Speedometer Correction - Click Here
1996-Present Speedometer Correction - Click Here

Ford Performance Racing Parts "Packs" and Component Parts Limited Warranty - Click Here
Ford Performance Racing Parts - NO WARRANTY - Click Here
Ford Performance Racing Parts Crate Engine Limited Warranty - Click Here

  • Ford Mustang - 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Fitment Notice
  • Fits 2015-2024 Ford Mustang Ecoboost, V6, & GT.
  • 3.15 ratio differential is not compatible with 3.31, 3.55, 3.73, and 4.09 ratio gears. Use differential M-4204-M.

California Residents:
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About This Brand

Ford Performance
Ford Performance - Mustang Ford Racing Parts
Ford Performance Parts is the leader in performance parts and accessories for Mustang and Ford Lightning. is proud to offer Ford Racing Performance Parts for your project. Ford Racing is dedicated to manufacturing the highest quality products offered in the industry. Choose from suspension, exhaust, wheels, and other performance parts at Late Model Restoration. If you want the best for your Mustang or SVT Lightning, look no further than Ford Performance Parts!
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