Drivetrain› Differentials and Rear-End Components

Ford Racing

Ford Racing 15-25 Mustang GT 3.73 Ratio 8.8in Ring and Pinion Set

$451.15

SKU: F009 M-4209-88373A

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Upgrade your 2015-2018 Ford Mustang GT with the Ford Racing M-4209-88373A 8.8-inch Ring and Pinion Set. The 3.73 ratio improves acceleration and and overall performance, offering a perfect blend of power and speed with high-strength construction for reliability. This high-performance gear set enhances acceleration and responsiveness, making it an ideal choice for enthusiasts seeking improved driving dynamics and power delivery. Crafted from high-strength materials, this ring and pinion set ensures durability and reliability.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFord Racing
Part NumberF009 M-4209-88373A

Videos

2015-2019 Mustang Ford Performance IRS 3.73 Ring Gear and Pinion Kit Review

2015-2019 Mustang Ford Performance IRS 3.73 Ring Gear and Pinion Kit Review

Buy with Confidence

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.

View Full Return Policy