Zumbrota Drivetrain

GM 8.5-Inch Rear Axle Kit, 30 Spline, 30.375-Inch

$170.89

SKU: ZA K630117

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

Description

The Zumbrota Drivetrain ZA K630117 is a rear axle kit engineered to fit GM 8.5-inch differentials. This kit is crucial for maintaining the integrity and functionality of your vehicle's drivetrain. It features 30 splines and a precise length of 30.375 inches, ensuring proper fitment within the differential housing. The kit comes complete with all necessary components for a comprehensive installation, including a wheel bearing, seal, differential cover gasket, studs, and lug nuts. The 5 x 5-inch bolt pattern with 12mm studs is a common specification for many GM applications, simplifying the replacement process. This rear axle kit is compatible with GM 8.5-inch differentials. The inclusion of a wheel bearing with a 2.25-inch outer diameter ensures smooth operation and longevity. By replacing worn or damaged axle components with this kit, you can restore proper power transfer and prevent further damage to your drivetrain.

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 K630117
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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