USA Standard Gear

4.56 Gear and Installation Kit

$1,033.63

SKU: ZGK003

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

Description

The USA Standard Gear ZGK003 Re-gear & Installation Kit offers a comprehensive solution for upgrading the gearing in your four-wheel drive vehicle. This all-in-one kit simplifies the re-gearing process by packaging both front and rear ring and pinion sets with the most complete master overhaul kits available. It is compatible with vehicles featuring a reverse rotation Dana Spicer 30 front differential and a Chrysler 8.25" rear differential. The included 4.56 gear ratio is ideal for accommodating larger tire sizes, improving towing capability, and enhancing off-road performance. USA Standard Gear utilizes rigorous in-house quality testing and inspections to ensure that all gears meet stringent dimensional, material, and fitment standards. These ring and pinion sets are built to withstand the demands of everyday commuting, trail running, and spirited driving. The master overhaul kits included in this package contain essential components such as pinion bearings and races, carrier bearings and races, pinion nut and seal, and ring gear bolts, ensuring a thorough installation.

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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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

BrandUSA Standard Gear
Part NumberZGK003
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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