Zumbrota Drivetrain

Rear Axle Kit

$204.89

SKU: ZA K630841

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

Description

The Zumbrota Drivetrain ZA K630841 is a comprehensive rear axle kit specifically engineered for GM 7.5/7.6-inch differentials. This kit is designed to provide a robust and reliable replacement, featuring 26 splines and a precise length of 28.4375 inches. It also includes a 5-lug pattern with 7/16-inch studs, ensuring compatibility with various wheel setups. Each kit contains all the necessary components for a complete installation, including the axle shaft, wheel bearing, seal, differential cover gasket, studs, and lug nuts. The axle shafts undergo advanced heat-treating, a process that significantly enhances their strength and durability, making them more resilient to stress and wear. USA Standard Gear, the brand behind this kit, designs and builds its components to meet or exceed original equipment (OE) quality standards, ensuring a fit and performance comparable to the factory part. This rear axle kit is suitable for applications requiring a 7.5-inch differential with 26 splines and a 5-lug configuration. The included components are manufactured with attention to detail, from the axle shaft itself to the smaller parts like bearings and seals, all contributing to the longevity and proper function of the 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 K630841
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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