Zumbrota Drivetrain

GM 10.5" 14-Bolt 40 Spline Steel Spool

$493.89

SKU: YP FSGM14T-3-40

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

Description

The Yukon Steel Spool is engineered as a high-performance differential component for GM 10.5” 14-bolt truck axles. This robust spool is constructed from durable, heat-treated steel and features 40 spline axles, ensuring it can handle demanding performance applications. This differential spool is designed to provide 100% traction to both wheels simultaneously, significantly enhancing off-road or racing capabilities. It is specifically designed for use with 4.10 and numerically lower gear ratios. The product details explicitly state that this spool is not recommended for street-driven vehicles due to its nature of providing constant traction to both wheels. The spool fits GM 10.5” 14-bolt truck differentials and is intended for aftermarket 40 spline axles. Its steel construction and heat treatment contribute to its high strength and long lifespan in performance-oriented environments.

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 NumberYP FSGM14T-3-40
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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