USA Standard Gear

4340 Chromoly Rear Axle Kit

$314.89

SKU: ZA K630338

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

Description

The USA Standard Gear ZA K630338 is a heavy-duty rear axle kit engineered for Dana 44 differentials. Constructed from 4340 Chromoly with advanced heat-treating, this axle is built for superior strength and longevity, designed to meet or exceed OE quality. This comprehensive kit includes all necessary components for replacement, repair, or upgrade, such as the axle bearing, seal, studs, lug nuts, and ABS ring. It features 30 splines, a 32-inch length, and a 5 x 5-inch bolt pattern, ensuring a precise fit for compatible vehicles. Specifically, this rear axle kit is designed for the 2007-2018 Jeep Wrangler JK models with a Dana 44 differential (non-Rubicon). It is intended for 4WD applications and is a single-side replacement kit.

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 K630338
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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