Zumbrota Drivetrain

Rear Axle Kit, 33 Spline 32.75 Inch

$294.89

SKU: ZA K630137

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

Description

The Zumbrota Drivetrain ZA K630137 is a comprehensive rear axle kit engineered for GM 9.5-inch differentials. This kit provides a direct-fit solution for vehicles equipped with this specific differential type, featuring 33 splines and a precise length of 32.75 inches. Designed for rear, semi-float axles with an 8-lug pattern, this kit ensures compatibility with a range of heavy-duty applications. The included components are manufactured to meet quality standards for reliable performance. This kit comes complete with a wheel bearing, seal, differential cover gasket, studs, and lug nuts, simplifying the installation process and ensuring all necessary hardware is on hand. Key specifications include a 33-spline count and a 32.75-inch axle length, crucial for proper fitment and function within the GM 9.5-inch differential housing. The wheel bearing has an outer diameter of 2.985 inches, further detailing the precise nature of this replacement part.

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 K630137
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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