USA Standard Gear

4.88 Ring and Pinion Gear Kit

$1,056.89

SKU: ZGK002

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

Description

The USA Standard Gear ZGK002 is a comprehensive differential overhaul kit designed for specific Jeep models. This package provides both front and rear ring and pinion sets, as well as master overhaul kits, all consolidated under a single part number for convenience and time savings. This kit is engineered to fit Jeep XJ and YJ models equipped with a reverse rotation Dana Spicer 30 front axle and an AMC Model 35 rear axle. The specific 4.88 gear ratio is included to optimize performance for these vehicles. Technical notes indicate that if your current setup is a 3.54 ratio, a new front carrier will be required. For those with a 3.07 ratio, both new front and rear carriers will be necessary for proper installation and function.

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 NumberZGK002
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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