USA Standard Gear

Front Inner Right Axle, 28 Spline

$164.89

SKU: ZA W39252

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

Description

The USA Standard Gear ZA W39252 is a performance axle constructed from high-tensile strength 4340 Chromoly, utilizing superior manufacturing methods and advanced heat-treating technologies for exceptional quality and durability. It is specifically designed for GM 8.5-inch front differentials, featuring 28 splines and a length of 19.15 inches. This inner RH axle accepts a 5-760X series U-joint and is engineered to be larger in diameter than stock 28-spline axles, enhancing overall strength and robustness. It is important to note that to properly install this axle, the carrier case part number YC G26010481 must be purchased separately. USA Standard Gear backs this axle with a 5-year warranty against manufacturer defects. Customers have reported positive experiences, noting improvements in reliability and performance, with one user highlighting its stability when towing heavy loads and another praising its durability and straightforward installation.

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 W39252
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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