USA Standard Gear

Rear Axle Kit for GM 9.5 Inch Differential

$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 USA Standard Gear ZA K630137 Rear Axle Kit is engineered for GM 9.5-inch differentials, featuring a 33-spline count and a right-hand orientation. Constructed from advanced alloys and subjected to the latest heat-treating technologies, this axle kit is built for enhanced strength and durability. This comprehensive kit includes all necessary components for installation, such as a wheel bearing, seal, differential cover gasket, studs, and lug nuts. The axle has a total length of 32.75 inches and is designed for rear semi-float axle applications with an 8-lug wheel bolt pattern. The wheel bearing has an outer diameter of 2.985 inches. The application summary indicates fitment for various Chevrolet and GMC trucks and vans from the 1980s and 1990s, specifically noting models like the Chevrolet C20, C20 Suburban, G30, K20, K20 Suburban, R20, R20 Suburban, R2500, R2500 Suburban, V20, V20 Suburban, V2500 Suburban, and GMC C2500, C2500 Suburban, K2500, K2500 Suburban, R2500, R2500 Suburban, V2500 Suburban, and G3500. A recurring qualifier for many of these applications is 'with 14 Bolt Cover'.

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 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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