Drivetrain› Differentials and Rear-End Components

Zumbrota Drivetrain

Chrysler 8.75" 30 Spline Steel Spool

$313.89

SKU: YP FSC8.75-30

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INSTALL DIFFICULTY
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Moderate — 2–4 hours

Overview

The Yukon steel spool is a differential component designed to convert a differential to 100% lockup. This spool is specifically designed for Chrysler 8.75" differentials with 30 spline axles.

A spool provides 100% traction to both wheels at all times, making it an outstanding choice for dedicated off-road and drag racing vehicles. However, it is not recommended for street-driven vehicles. The spool includes carrier bearing & race numbers LM104949 & LM104912.
Show original supplier description
The Yukon steel spool is a high-strength differential component engineered to provide a 100% locked differential for maximum traction in demanding applications. It is constructed from premium 8620 steel, a material known for its durability and resistance to wear. To ensure maximum robustness for high-stress environments, each Yukon spool undergoes a rigorous heat-treating process, significantly enhancing its strength and longevity. This makes it an ideal upgrade for dedicated off-road vehicles and drag racing applications where consistent, full lockup is crucial for performance and control. The Yukon steel spool is precision-manufactured to fit Chrysler 8.75" differentials that utilize 30 spline axles. The required carrier bearing and race numbers for installation are LM104949 and LM104912. It is important to note that due to its nature of providing 100% traction to both wheels continuously, this type of spool is not recommended for street-driven vehicles. Its optimal performance is realized in specialized conditions such as off-roading or drag strip racing.

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.

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Specifications

BrandZumbrota Drivetrain
Part NumberYP FSC8.75-30
CategoryDrivetrain
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Shipping

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