Drivetrain› Differentials and Rear-End Components

Yukon Gear & Axle

8.5" GM 4.88 REAR RING & PINION, IN

$912.55

SKU: Y001 ZGK2015

In Stock
In Stock
Ships by Jun 9
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This Yukon Gear & Axle kit (ZGK2015/YGK2015) is a comprehensive package for re-gearing GM 8.5" 10-bolt rear axles. It includes a 4.88 ratio ring and pinion gear set, a master install kit with high-quality Koyo bearings, and all necessary small parts for a differential rebuild. Designed for axles with a 1.625" carrier bearing journal, this kit provides a one-stop solution for common differential repairs and upgrades, ensuring quick and efficient installation.

Fitment

Fitment Guaranteed

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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

BrandYukon Gear & Axle
Part NumberY001 ZGK2015

Videos

Yukon Gear & Axles posi Differential with 4.10 Gears on my 2019 Silverado 1500 RWD🤩

Yukon Gear & Axles posi Differential with 4.10 Gears on my 2019 Silverado 1500 RWD🤩
Installing Ring and Pinions and Yukon Zip Lockers

Installing Ring and Pinions and Yukon Zip Lockers
how to re-gear a GM 8.6" 10-bolt axle

how to re-gear a GM 8.6" 10-bolt axle
Setting Up a 10 Bolt Rear End

Setting Up a 10 Bolt Rear End

Buy with Confidence

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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