# Ford Racing 2015 Mustang GT 8.8-inch Ring and Pinion Set - 3.55 Ratio

Ford Racing ring and pinion sets are engineered, manufactured, and tested for maximum performance. These ring and pinion sets are finished in a black oxide coating for corrosion resistance, and are available in many different ratios to fit a variety of Ford differentials. \*\* 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. \* This part is designed and intended for competition use only. It should not be installed on a vehicle that is driven on public roads and highways. Installation of this art on a vehicle driven on public roads and highways is likely to violate U.S. and Canadian laws and regulations relating to motor vehicle emissions.

-   Requires Aftmkt Calib. If Vehicle Not Equipped w/This Gear Ratio
-   OEM Quality Provides The Strongest/Quietest Gears On The Market
-   Incl. OEM Crush Sleeve and Pinion Nut
-   Requires M-4210-B3 Install Kit
-   Made in the USA

This Part Fits:

Year

Make

Model

Submodel

2019-2020

Ford

Mustang

Bullitt

2024-2025

Ford

Mustang

Dark Horse

2024-2025

Ford

Mustang

Dark Horse Premium

2015-2025

Ford

Mustang

EcoBoost

2015-2025

Ford

Mustang

EcoBoost Premium

2015-2025

Ford

Mustang

GT

2015

Ford

Mustang

GT 50 Years Limited Edition

2015-2025

Ford

Mustang

GT Premium

2021-2023

Ford

Mustang

Mach 1

2015-2020

Ford

Mustang

Shelby GT350

2015-2020

Ford

Mustang

Shelby GT350R

2020-2022

Ford

Mustang

Shelby GT500

2015-2017

Ford

Mustang

V6

## Details

- **Price:** 408.4 CAD
- **Vendor:** Ford Racing
- **Type:** Ring & Pinions

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 408.40 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/ford-racing-2015-mustang-gt-8-8-inch-ring-and-pinion-set-3-55-ratio)
> Updated: 2026-06-28