Drivetrain› Differentials and Rear-End Components

Ford Performance

4.10 Ring and Pinion Gear Kit

$139.00

SKU: M-4209-G410A

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Ford Performance Mustang Ring and Pinion Gear Kit features a 4.10 gear ratio and is designed for the Ford 8.8" differential. This kit offers superior quality with a strong forged construction and CNC-cut gear teeth. It is suitable for street, road, or race applications.
Show original supplier description
This kit features a 4.10 gear ratio and is built for the robust Ford 8.8" differential. Constructed from strong forged materials with CNC-cut and lapped gear teeth, these gears are finished with a black oxide coating for corrosion resistance. Installation of a new gear ratio will require a speedometer recalibration tool to ensure accurate speedometer readings. Additionally, for 2010 and newer Mustangs equipped with the 8.8" rear end, a new inner rear gear pinion bearing (Ford part# 9L3Z-4630-A) is necessary for proper installation. A master bearing kit is also recommended, especially for high-mileage vehicles. This Ford Racing Ring and Pinion Gear set is compatible with 1986-2012 V8 Mustangs (including GT, Bullitt, Mach 1, Cobra) and 2011-2014 V6 Mustangs equipped with the 8.8" rear end. It specifically excludes the 2013-2014 GT500 models.

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.

Fitment

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Specifications

BrandFord Performance
Part NumberM-4209-G410A
CategoryDrivetrain
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Returns & Fitment

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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