2015-17 Ford Mustang Ford Performance 3.73 Gears - S550 by Ford Performance

Mustang Ford Performance 3.73 Gears (15-17)

Details   |  Description
  • Ford Racing Mustang 3.73 Gears (2015) M-4209-88373A
Mustang Ford Performance 3.73 Gears (15-17)

Add a set of Ford Performance 3.73 gears to your high horsepower 2015-2017 Mustang to get maximum performance!

Item #M420988373A
MPN# M-4209-88373A

Your Price: $197.99

Market Price:$249.00
You Save 20.49 % ($51.01)

Ships from supplier by Friday, October 28

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  • 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

Made in the USA

Product Description

Increased Acceleration
If you are looking to give your S550 better acceleration and more performance, a set of 2015-2017 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 S550 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!

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

- Fits 2015-2017 Ford Mustang Ecoboost, V6, & GT

Ford Performance Racing Parts - NO WARRANTY - Click Here

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

1996-2017 Speedometer Correction - Click Here

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    Posted on 4/24/2015

  • Product Reviews

    Vehicle Applications

    Ford Mustang - 2015 (15) - 2016 (16) - 2017 (17)

    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.

    LMR.com 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 LatemodelRestoration.com. If you want the best for your Mustang or SVT Ligtning, look no further than Ford Performance Parts!

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