Zumbrota Drivetrain

Muscle Car Re-Gear Kit 30 Spline 4.56 Ratio

$666.02

SKU: YGK2334

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

Description

The Yukon Muscle Car Re-Gear Kit, manufactured by Yukon Gear and Axle, is a comprehensive solution for upgrading your vehicle's differential. Designed to fit GM 8.5” differentials, this re-gear kit features a 30 spline pinion gear and a 4.56 gear ratio, along with a 10-bolt ring gear. The package also includes 2.25" OD bearings, ensuring all necessary components are supplied for a proper installation. This re-gear kit offers broad coverage, fitting models such as the 1970-1981 Firebird Trans Am and the 1970-1977 GTO. It is also compatible with approximately 25 other vehicle models and is an ideal upgrade for any hot-rodded vehicle that utilizes a GM 8.5” differential.

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

BrandZumbrota Drivetrain
Part NumberYGK2334
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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