Zumbrota Drivetrain

30 Spline 31.2" Rear Axle Kit

$598.89

SKU: ZA K630852

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

Description

The Zumbrota Drivetrain ZA K630852 is a rear axle kit engineered for Toyota vehicles equipped with an 8-inch or 8.2-inch differential. It features 30 splines and a precise length of 31.2 inches, making it a direct fit for compatible applications. Constructed from heavy-duty 4340 chromoly, this axle kit offers enhanced strength and durability. The material is further strengthened through advanced heat-treating technologies, resulting in a more robust and long-lasting axle. The kit is specifically designed for the rear position and accommodates vehicles with 6 lugs. It comes complete with an inner axle seal and wheel studs, providing all necessary components for a comprehensive installation. USA Standard Gear, the manufacturer of this kit, utilizes advanced alloys and modern heat-treating processes to deliver a strong and reliable axle. This attention to material science and manufacturing ensures that the ZA K630852 meets high-performance standards for demanding driving conditions.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandZumbrota Drivetrain
Part NumberZA K630852
CategoryDrivetrain

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy