Zumbrota Drivetrain

Grizzly Locker Differential Dropout Assembly 3.89 31 Spline Ford 9"

$2,544.69

SKU: YDAF9-389YGL-31

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

Description

The Yukon Dropout Assembly is a complete, fully assembled differential designed for Ford 9” differentials. This unit comes with a 3.89 gear ratio and 31 spline count, making it a robust upgrade for various applications. Key to this assembly is the inclusion of a Yukon Grizzly Locker, known for its strength and reliability in demanding conditions. The dropout design simplifies installation by providing a pre-assembled unit ready to be fitted into the differential housing. Please note that this assembly does not include a yoke, which will need to be sourced separately. This dropout assembly is manufactured by Yukon Gear and Axle, a recognized name in drivetrain components. The product details indicate it is a remanufactured part, with specific shipping policies for reman parts.

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

BrandZumbrota Drivetrain
Part NumberYDAF9-389YGL-31
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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