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Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

Differential Installation Kit

Name: Differential Installation Kit
Brand: Zumbrota Drivetrain
SKU: YGK2221

$1,538.89

SKU: YGK2221

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$100 Minimum Order

Non-Returnable Item

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Moderate — 2–4 hours

Overview

The Zumbrota Drivetrain YGK2221 is a differential and rear-end component package. This kit includes a Yukon Gear & Axle 8.8" Ford 3.31 ratio rear ring and pinion gear set. It also features a 28 spline Yukon Dura Grip limited slip positraction differential and 2.25" OD axle bearings and seals.

Show original supplier description

The Yukon Gear & Axle YGK2221 is a comprehensive differential and rear-end component package designed to provide a complete solution for differential repair and performance. This kit includes a Yukon Gear & Axle 8.8" Ford 3.31 ratio rear ring and pinion gear set, specifically designed for applications with a 10-bolt rear cover and 10-bolt ring gear. The inner pinion bearing features a 3.250" outside diameter. This package also includes a 28-spline Yukon Dura Grip clutch-style limited slip positraction differential, which is fully rebuildable. Alongside the differential components, the kit provides 2.25" OD axle bearings and seals. These kits are backed by a strong warranty, with Yukon offering an extended service plan for comprehensive coverage. This ensures that the installation process is as smooth as possible, utilizing premium components that meet or exceed OE specifications.

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

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Specifications

Brand	Zumbrota Drivetrain
Part Number	YGK2221
Category	Drivetrain

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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.

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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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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