Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

Grizzly Locker Dropout Assembly

$2,161.89

SKU: YDAT100-430YGL

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Yukon Dropout Assembly is a differential designed for the Toyota T100 rear end. It features a 4.30 gear ratio, 30 splines, and is upgraded with a Yukon Grizzly Locker. This unit is a complete, fully assembled dropout and includes the yoke.
Show original supplier description
The Yukon Dropout Assembly, by Yukon Gear and Axle, offers a significant upgrade for the Toyota T100's rear differential. This fully assembled dropout unit comes equipped with a 4.30 gear ratio and 30 splines, making it a robust replacement or performance enhancement. Central to this assembly is the integrated Yukon Grizzly Locker, providing aggressive traction and performance benefits for off-road or demanding driving conditions. The product details also note that a yoke is included with the assembly, simplifying installation. The unit is designed to fit the Toyota T100's 8.4" rear differential.

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 NumberYDAT100-430YGL
CategoryDrivetrain

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

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.

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.

View Full Shipping Policy