Drivetrain› Differentials and Rear-End Components

USA Standard (Yukon)

USA Standard steel spool for Dana 44 with 30 spline axles 3.73 and down

$317.89

SKU: U018 ZP FSD44-3-30DN

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In Stock
Ships by Jun 18
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Non-Returnable Item
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Description

The USA Standard (Yukon) ZP FSD44-3-30DN is a steel spool for Dana 44 differentials with 30 spline axles and a 3.73 & down gear ratio. It replaces the differential carrier carrier assembly to provide 100% lockup, ensuring both wheels turn at the same speed. It is constructed from 8620 steel and heat-treated for durability. This part is intended for dedicated off-road and drag racing vehicles only and is not recommended for street-driven vehicles due to its effect on steering and tire wear during low-speed turns.

Fitment

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Specifications

BrandUSA Standard (Yukon)
Part NumberU018 ZP FSD44-3-30DN

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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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