Zumbrota Drivetrain

GM 8.5-inch Rear Axle Kit 30 Spline 6-Lug

$182.89

SKU: ZA K630101

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

Description

The Zumbrota Drivetrain ZA K630101 rear axle kit is engineered for GM 8.5-inch differentials. It offers a robust 30-spline count and a 6-lug configuration, with a total length of 33 inches. This comprehensive kit is constructed using advanced alloys and the latest heat-treating technologies from USA Standard Gear, ensuring a strong and durable axle shaft. The package includes all necessary components for replacement or upgrade, such as the wheel bearing (2.53" OD), seal, differential cover gasket, studs, and lug nuts, allowing for a fast and efficient installation process.

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

BrandZumbrota Drivetrain
Part NumberZA K630101
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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