Zumbrota Drivetrain

3.73 Thin Ring & Pinion Gear Set

$978.89

SKU: ZGK2159

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

Description

The Zumbrota Drivetrain ZGK2159, also known as the USA Standard Gear 11.25" Dana 80 Thin 3.73 Rear Ring & Pinion, Install Kit, is a comprehensive differential repair solution. Designed for durability and ease of installation, this kit is compatible with applications featuring a 10-bolt rear cover and a 12-bolt ring gear. It is specifically made to fit carrier cases designed for 4.10 and up gear ratios, with a ring gear diameter of 11.25 inches. The Quick Kits are intended to offer a one-stop shopping experience for common differential repairs, combining essential components at an affordable price. This package simplifies the repair process by including everything needed in a single part number. The inclusion of USA Standard ring and pinion gears, coupled with Koyo bearings, ensures reliable performance and longevity for your vehicle's differential.

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 NumberZGK2159
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