USA Standard Gear

Rear Axle Kit for GM 8.5" Differentials

$230.89

SKU: ZA K630834

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

Description

The USA Standard Gear ZA K630834 rear axle kit is engineered to fit GM 8.5-inch differentials, offering a 30-spline count and a length of 31-1/16 inches. Constructed from advanced alloys and subjected to the latest heat-treating technologies, this axle is built for superior strength and longevity. This comprehensive kit provides all the essential components needed to replace, repair, or upgrade your vehicle's axle shafts. Included in the kit are the axle shaft itself, a wheel bearing, a seal, a differential cover gasket, 12mm studs, and lug nuts, ensuring a complete solution for restoring your vehicle's drivetrain functionality. The design and manufacturing process of the USA Standard Gear ZA K630834 aims to meet or exceed Original Equipment (OE) quality standards. Its robust construction and included components make it a reliable choice for ensuring your vehicle operates smoothly and efficiently. The kit also features a 5x5-inch bolt pattern, making it suitable for specific rear axle applications.

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 K630834
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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