USA Standard Gear

4.11 Ratio Ring and Pinion Gear Set with Installation Kit

$1,113.89

SKU: ZGK2107

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

Description

The USA Standard Gear ZGK2107 is a comprehensive ring and pinion gear set and master installation kit designed for re-gearing differentials. This package streamlines the process by combining the ring and pinion gears with all the essential bearings, seals, and small parts required for a correct installation, all under a single part number. The kit specifically includes a 4.11 ratio ring and pinion gear set, compatible with differentials featuring a 14-bolt rear cover and a 12-bolt ring gear. It also comes with the HM807046/HM807010 inner pinion bearing and race, which has a 4.125" outside diameter. USA Standard Gear emphasizes quality through rigorous in-house testing and inspections, ensuring that its gears meet precise dimensional, material, and fitment specifications. This particular kit is designed for GM, Chrysler, Dodge, and Ram vehicles, specifically for AAM 11.5-inch axles. The applicable model years for GM vehicles are 2001-2010, and for Chrysler/Dodge/Ram vehicles, they are 2003-2010. The ring gear diameter is 11.5 inches. USA Standard Gear aims to provide a cost-effective and time-saving solution for differential repairs with their Quick Kits, offering convenient, all-in-one packages.

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

BrandUSA Standard Gear
Part NumberZGK2107
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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