Zumbrota Drivetrain

11.5" Ring & Pinion Set 3.42 Ratio 30 Spline

$933.89

SKU: YG GM11.5-342

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

Description

This Yukon high performance ring and pinion gear set is engineered for GM and Chrysler 11.5" rear differentials, offering a 3.42 gear ratio. The set includes components with an 11.50" ring gear diameter, a 30-spline pinion, and is designed for 12 ring gear bolts. Yukon utilizes high-grade steel for both the ring and pinion, with a gear tooth surface finish optimized to reduce friction and heat. This set is suitable for GM 11.5" and Chrysler 11.5" applications. The specific ratio of 3.42 provides a balance between acceleration and fuel efficiency for a range of driving conditions. This product is for GM & Chrysler 11.5" rear differentials. Additional specifications include a 30 spline pinion and 12 ring gear bolts. Note that this product carries a California Proposition 65 Warning.

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 NumberYG GM11.5-342
CategoryDrivetrain

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

Call us, follow along, or come say hi.

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