USA Standard Gear

Differential Gear and Install Kit, 5.13 Ratio

$1,425.89

SKU: ZGK044

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

Description

The USA Standard Gear ZGK044 is a comprehensive differential gear and install kit engineered to facilitate the re-gearing of both front and rear differentials in a single, convenient part number. This all-inclusive package contains front and rear ring & pinion sets, complemented by the most complete master overhaul kits available on the market. The kit features a 5.13 gear ratio, ideal for enhancing torque and performance in heavy-duty applications. The included ring and pinion sets are thick gear sets, designed for compatibility with carriers that have a 4.10 ratio or lower. This design ensures robust performance and durability for demanding conditions. This differential gear and install kit is built for standard rotation Dana Spicer 60 axles and 1988 and older GM 10.5-inch 14-bolt truck axles. Ensure your vehicle is equipped with one of these axle types to guarantee proper fitment 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 NumberZGK044
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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