Sale

Zumbrota Drivetrain

4.56 Gear Ratio Upgrade

$682.99 $682.89 Save $0.10

SKU: YGK2374

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

This kit facilitates an upgrade to a more aggressive 4.56 gear ratio, specifically for Ford 8.8” differentials. This re-gear kit includes a complete ring and pinion gear set, along with all the necessary bearings and installation hardware for a comprehensive upgrade. It features a 30 spline pinion gear and a 10-bolt ring gear, with axle bearings measuring 2.25” in OD. The kit is designed to fit a wide range of vehicles, including the 1979 to 2014 Mustang and 1979 to 1997 Cougar, as well as approximately 28 other models, or any vehicle that has been hot-rodded with a Ford 8.8” differential. As with many automotive components, this product comes with a California Proposition 65 Warning. It may expose you to chemicals, including arsenic, which the State of California has identified as a cause of cancer. For more information, please visit www.P65Warnings.ca.gov.

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

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

BrandZumbrota Drivetrain
Part NumberYGK2374
CategoryDrivetrain

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy