Zumbrota Drivetrain

3.54 Ratio Differential Ring and Pinion Gear Set and Master Install Kit

$2,381.89

SKU: ZGK2178

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

Description

The Zumbrota Drivetrain ZGK2178 is a comprehensive package that includes a USA Standard 11.25" Dana 80 rear ring and pinion gear set, a master install kit, and a 35-spline Yukon Dura Grip Limited Slip Positraction unit. This kit is engineered for applications requiring a 3.54 gear ratio, featuring a 10-bolt rear cover and a 12-bolt ring gear. This "Quick Kit" offers a streamlined approach to differential repair and upgrades, consolidating all necessary parts into a single part number. Additionally, the kit contains the essential small parts required for a quick and efficient installation, minimizing vehicle downtime. The specifications for this kit include a 3.54 gear ratio and a 11.25" ring gear diameter. It is designed to fit carrier cases intended for 3.73 and down gear ratios. This package is ideal for enthusiasts and mechanics seeking a complete solution for differential maintenance or performance enhancement, offering affordability and convenience in one purchase.

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 NumberZGK2178
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