USA Standard Gear

Rear Axle Kit for GM 55P Differentials, Left Side, 28.5625"

$415.89

SKU: ZA K630844

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

Description

The USA Standard Gear ZA K630844 is a rear axle kit engineered for GM 55P differentials, featuring 17 splines. Designed for the rear, left-hand side, this axle shaft measures 28.5625 inches long. USA Standard Gear utilizes advanced alloys and the latest heat-treating technologies to produce a strong and durable axle. This comprehensive kit includes all necessary components to replace, repair, or upgrade your vehicle's axle shafts, ensuring it gets back on the road quickly and reliably. It contains the axle shaft, wheel bearing, seal, studs, and lug nuts. The advanced heat-treating process results in a stronger, more durable axle that can withstand demanding conditions. This kit offers a direct replacement or upgrade solution for your differential. This axle kit is specifically designed to fit GM 55P differentials and features 17 splines, with a length of 28.5625 inches. It is intended for the rear, left-hand side application.

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 K630844
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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