Yukon

3.55 Ratio Re-Gear Kit

$773.99

SKU: YGK2365

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

Description

The Zumbrota Drivetrain YGK2365 is a comprehensive re-gear kit engineered for GM 55P differentials, offering a 3.55 gear ratio with a 17-spline pinion and a 10-bolt ring gear. By allowing for a more aggressive gear ratio, the YGK2365 transforms the driving experience, providing a noticeable boost in responsiveness and power delivery. The YGK2365 is specifically designed for the GM 55P 8.4-inch rear differential. Its broad application coverage extends to iconic vehicles such as the 1956-1962 Chevrolet Corvette and the 1955-1964 Chevrolet Bel Air. Furthermore, it is compatible with any hot-rodded vehicle that has been equipped with a GM 55P differential from the 1955 to 1964 model years, making it a versatile option for classic car owners and custom builds.

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

BrandYukon
Part NumberYGK2365
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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