Drivetrain› Drive Shafts and Components

USA Standard Gear

Rear Axle Shaft Kit

$230.89

SKU: ZA K630123

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Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The USA Standard Gear ZA K630123 is a rear axle shaft kit designed for GM 7.625-inch differentials with 28 splines and a 5-lug pattern. This kit features an exact fit for easy installation and is constructed from advanced alloys with advanced heat treatment to enhance strength and durability. It includes all necessary components for replacement, repair, or upgrade, such as the wheel bearing, seal, differential cover gasket, studs, and lug nuts, ensuring your vehicle is quickly back in service.
Show original supplier description
The USA Standard Gear ZA K630123 Rear Axle Shaft Kit is engineered for reliability and performance, utilizing advanced alloys and state-of-the-art heat-treating technologies to produce a robust and long-lasting axle. It is specifically built to replace, repair, or upgrade axle shafts for vehicles equipped with GM 7.625-inch differentials featuring 28 splines and a 5-lug bolt pattern. Each kit comes complete with essential components to ensure a comprehensive service. This includes the wheel bearing, seal, differential cover gasket, studs, and lug nuts. The advanced heat-treatment process applied to these axles significantly enhances their strength and durability, providing years of dependable service. The axle shaft measures 26.75 inches in length and is intended for RWD applications. This axle shaft kit is compatible with specific RWD models, including the 1998-2000 Isuzu Hombre, 1998-2003 Chevrolet S10 (specifically models with the Sport Package ZQ8), and 1998-2003 GMC Sonoma (also with the Sport Package ZQ8). For these applications, the kit replaces OE part number 26064387 and is designed for 2WD vehicles, featuring a 26-5/8 inch length, 28 spline count, and 5 lug pattern.

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 NumberZA K630123
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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