Drivetrain› Differentials and Rear-End Components

Ford Performance

3.73:1 Ring and Pinion Kit

$200.00

SKU: M-4209-F373N

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Overview

The Ford Performance Ring and Pinion Kit is a performance upgrade for your Mustang's differential. It features a forged construction for durability and a 3.73:1 gear ratio. This kit is designed for street or track use and is specifically made for the 2010-2014 GT and 2010-2014 GT500 Mustang models.
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Constructed from forged materials, this kit offers robust durability for demanding driving conditions, whether on the street or the track. This kit includes a 3.73:1 gear ratio, designed to provide improved acceleration and responsiveness compared to stock gearing. It is built around a Ford 8.8-inch ring gear diameter and utilizes 10 cover bolts and 10 ring gear bolts. The pinion features a 30-spline count. Specifically designed for the 2010-2014 Ford Mustang GT and the 2010-2014 GT500 models, this kit ensures a direct fit. Note that a gear installation kit (like part number M-4210-A) is recommended and may be required for proper installation. Additionally, it may not be legal for use on pollution-controlled vehicles, and buyers should consult with their TÜV inspector regarding registration requirements.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandFord Performance
Part NumberM-4209-F373N
CategoryDrivetrain
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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