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Drivetrain› Differentials and Rear-End Components

USA Standard Gear

Rear Right Axle Shaft

Name: Rear Right Axle Shaft
Brand: USA Standard Gear
SKU: ZA K630618

$316.11

SKU: ZA K630618

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$100 Minimum Order

Non-Returnable Item

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Overview

The USA Standard Gear ZA K630618 is a rear axle shaft designed for Ford 9.75-inch differentials. It features 34 splines and a 6-lug pattern, with a shaft type for the rear right side. This axle is heat-treated for enhanced strength and is built to meet or exceed OE quality standards.

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The USA Standard Gear ZA K630618 is a replacement axle shaft engineered for precise fit and easy installation in Ford 9.75-inch differentials. This rear right axle shaft boasts 34 splines and a 6-lug pattern, with a total length of 33.5 inches. It is constructed with heat-treated components to ensure enhanced strength and durability, meeting or exceeding original equipment (OE) quality standards for reliable service. This kit comes complete with all necessary components for replacement, repair, or upgrade, including the wheel bearing, seal, 12mm studs, and lug nuts.

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

Brand	USA Standard Gear
Part Number	ZA K630618
Category	Drivetrain

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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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