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Drivetrain› Differentials and Rear-End Components

USA Standard Gear

Rear Axle Kit

Name: Rear Axle Kit
Brand: USA Standard Gear
SKU: ZA K630149

$267.87

SKU: ZA K630149

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$100 Minimum Order

Non-Returnable Item

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Moderate — 2–4 hours

Overview

The USA Standard Gear ZA K630149 is a rear axle kit designed for GM 10.5-inch differentials with 30 spline count and a length of 38.9 inches. It is constructed from advanced alloys and undergoes advanced heat-treating for increased strength and durability. This kit is built to meet or exceed original equipment (OE) quality standards.

Show original supplier description

The USA Standard Gear ZA K630149 rear axle kit is engineered to provide a robust replacement, repair, or upgrade for your vehicle's axle shafts. This specific kit is compatible with GM 10.5-inch differentials and features a 30-spline count with a total length of 38.9 inches. The advanced heat-treatment process applied to the materials results in a stronger and more durable axle capable of withstanding demanding conditions. The product information indicates compatibility with models such as the 2007-2014 Chevrolet Silverado 2500 HD and various years of the Chevrolet Avalanche (2002-2006). It's important to confirm specific fitment for your vehicle's year, engine, and drivetrain configuration. While the product description focuses on the technical specifications and quality of the axle itself, buyers should consult detailed fitment guides or contact customer support to ensure compatibility with their specific vehicle application. No specific post-installation requirements or hardware prerequisites beyond standard installation practices are mentioned.

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

Brand	USA Standard Gear
Part Number	ZA K630149
Category	Drivetrain

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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

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