Zumbrota Drivetrain

3.21 Ring & Pinion Set

$636.89

SKU: YG C9.25B-321B

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

Description

The Yukon high performance Ring & Pinion set is engineered by Yukon Gear and Axle to meet exacting specifications for automotive gear applications. Designed for 2011 and newer Chrysler 9.25" ZF differentials, this set features a 3.21 gear ratio, offering a balance for various driving needs. Yukon utilizes state-of-the-art design and advanced heat-treating techniques in the manufacturing of their ring and pinion sets. Rigorous quality testing processes ensure that the structure and surface finish of each gear set meet stringent standards. This commitment to quality aims to provide durability and optimal performance for your drivetrain. The product is compatible with 2011 and later Chrysler 9.25" ZF rear differentials. This set is ideal for those looking to optimize traction performance, whether due to added horsepower or larger tire upgrades. Yukon offers a wide selection of gear ratios to accommodate diverse vehicle builds and performance goals.

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 C9.25B-321B
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