Zumbrota Drivetrain

3.55 Ratio Ring and Pinion Set

$519.89

SKU: YG GMVET-355

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

Description

The Yukon high performance ring and pinion set is engineered for GM cast iron Corvette dropout differentials, offering a 3.55 ratio for enhanced performance. This set includes an 8.20-inch ring gear diameter and a 30-spline pinion. Designed specifically for the 1963-1979 Corvette, this ring and pinion set provides a direct fit for the specified model years. The 3.55 ratio is a popular choice for a balance between acceleration and highway cruising, making it a versatile upgrade for performance-oriented builds. Technical notes indicate that while this set features a 30-spline pinion, earlier Corvette models from 1963 and 1964 were manufactured with a 17-spline pinion. It is crucial for owners of these specific years to confirm their existing pinion spline count before purchasing to avoid compatibility issues. This verification step ensures a smooth installation and proper function of the new differential components.

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 NumberYG GMVET-355
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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