Zumbrota Drivetrain

GM/Chrysler 11.5" 38 Spline Spool

$1,346.89

SKU: YP FSGM11.5-38

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

Description

The Yukon spool is a heavy-duty 4x4 driveline component engineered for GM and Chrysler 11.5-inch differentials featuring 38 spline axles. This spool ensures maximum traction by locking both rear wheels together, providing 100% power delivery to both tires simultaneously, which is ideal for off-road performance applications. However, it is important to note that due to its nature, it is not recommended for street-driven vehicles as it can cause tire scrub and handling alterations during normal on-road driving. A crucial installation note specifies that the factory spindles will need to be bored out to accommodate the 38 spline axles. This modification is a necessary step to ensure proper fitment and function of the spool.

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 FSGM11.5-38
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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