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Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

Standard Differential Bearing Kit

Name: Standard Differential Bearing Kit
Brand: Zumbrota Drivetrain
SKU: ZBKD30-JK

$268.89

SKU: ZBKD30-JK

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The USA Standard Bearing kit is a differential and rear-end component designed for the Dana 30 JK front axle. It utilizes Koyo bearings and races for durability. The kit includes all necessary parts for installation, such as carrier and pinion bearings and races, a pinion seal, pinion nut, crush sleeve, and marking compound with a brush.

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The USA Standard Bearing kit is a comprehensive solution for servicing the Dana 30 JK front differential. Included in this kit are all the essential components needed for a complete installation. You will find carrier bearings and races, pinion bearings and races, a pinion seal, pinion nut, a crush sleeve, and marking compound with an application brush. This ensures you have everything required to properly set up your differential. This bearing kit is a product of USA Standard Gear, a trusted name in drivetrain components. With part number ZBKD30-JK, it is designed to meet the demands of off-road use and everyday driving.

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	Zumbrota Drivetrain
Part Number	ZBKD30-JK
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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