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Drivetrain› Differentials and Rear-End Components

USA Standard Gear

Rear Axle Kit, 30 Spline, 6 Lug, 26.75"

Name: Rear Axle Kit, 30 Spline, 6 Lug, 26.75"
Brand: USA Standard Gear
SKU: ZA K630334

$306.24

SKU: ZA K630334

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Non-Returnable Item

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Overview

The USA Standard Gear ZA K630334 is a rear axle kit designed for Toyota 8-inch differentials. It features 30 splines and a 6-lug configuration with a 26.75-inch length. This kit includes a wheel bearing, seal, studs, and lug nuts. Constructed with advanced alloys and heat-treating technologies, this axle is built to meet or exceed OE quality, offering strength and durability.

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The USA Standard Gear ZA K630334 rear axle kit is engineered to provide a strong and durable replacement or upgrade for your Toyota 8-inch differential. The kit comes complete with all necessary components for installation, including the axle shaft, wheel bearing, seal, studs, and lug nuts, ensuring you have everything needed to get your vehicle back on the road. Key specifications for this axle include 30 splines and a 26.75-inch length, ensuring compatibility with specific Toyota applications. The 6-lug pattern and 91mm brake pilot size are also critical for proper fitment. This axle is specifically designed for the rear application on 1984-1985 Toyota 4Runner (4WD) and 1979-1985 Toyota Pickup (4WD) models equipped with the Toyota 8-inch rear differential. The inclusion of essential components like the wheel bearing, seal, studs, and lug nuts means less time spent sourcing additional parts and more time ensuring your drivetrain is performing optimally.

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 K630334
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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