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Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

Front Axle Kit

Name: Front Axle Kit
Brand: Zumbrota Drivetrain
SKU: ZA K630423

$389.89

SKU: ZA K630423

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$100 Minimum Order

Non-Returnable Item

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Moderate — 2–4 hours

Overview

The Zumbrota Drivetrain ZA K630423 is a front axle kit designed for GM 8.25 in. IFS Differentials with 28 splines and a right-hand inner position. This axle kit features advanced heat-treating for increased strength and durability. It is engineered and built to meet or exceed Original Equipment (OE) quality standards.

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The Zumbrota Drivetrain ZA K630423 front axle kit is crafted from advanced alloys and utilizes cutting-edge heat-treating technologies to ensure a strong, long-lasting, and durable component. This kit provides all the necessary parts to replace, repair, or upgrade your axle shafts, getting your vehicle back on the road quickly and reliably. This specific axle is designed for GM 8.25-inch IFS differentials, featuring 28 splines and a length of 19.37 inches. It is intended for the front, inner, and right-hand (RH) position. The advanced heat-treatment process employed in its manufacturing results in a significantly stronger and more durable axle compared to standard components. USA Standard Gear, the brand behind this axle kit, is committed to producing parts that are designed and built to meet or exceed OE quality. This ensures a high level of performance and longevity, giving you peace of mind. Whether you are performing routine maintenance or a performance upgrade, this front axle kit offers a robust solution for your drivetrain needs.

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	Zumbrota Drivetrain
Part Number	ZA K630423
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

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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