Zumbrota Drivetrain

GM 12-Bolt 4.11 Ratio Ring and Pinion Gear Set

$742.89

SKU: YGK2318

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

Description

This comprehensive kit is specifically designed for GM 12-bolt differentials, ensuring a precise fit and improved performance. It also contains all the required bearings and installation hardware needed for a complete upgrade. The Yukon brand ensures durability and performance for enthusiasts seeking to optimize their drivetrain. While the primary focus is on performance enhancements for muscle cars, the kit is also noted for its compatibility with hot-rodded vehicles featuring a GM 8.875” 12-bolt passenger axle. Specific coverage is mentioned for classic models including the '64-'72 Chevelle, '67-'72 Camaro, '69-'72 Firebird, and '70-'72 GTO, along with 9 other models, suggesting a broad application within the performance and classic car community.

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 NumberYGK2318
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