Zumbrota Drivetrain

4.56 Ratio Rear Ring and Pinion Kit

$1,021.89

SKU: ZGK2108

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

Description

The ZGK2108 from USA Standard Gear is a comprehensive rear ring and pinion installation kit designed for specific differential applications. This kit is engineered for vehicles featuring a 14-bolt rear cover and a 12-bolt ring gear, ensuring a precise fit for these configurations. At the core of this kit is a 4.56 gear ratio, suitable for enhancing performance or replacing worn components. Specifically, it contains the HM807046/HM807010 inner pinion bearing and race, which has a 4.125-inch outside diameter. They bundle the ring and pinion gear set with all the essential small parts needed to complete the differential repair. This approach simplifies the purchasing process and aims to get vehicles back on the road quickly. With an 11.5-inch ring gear diameter, this kit is tailored for specific AAM (American Axle Manufacturing) rear axle assemblies. The product also comes with a standard 1-year limited warranty.

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

BrandZumbrota Drivetrain
Part NumberZGK2108
CategoryDrivetrain

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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.

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