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YP FSF9-40 Yukon Gear & Axle Steel Spools

Name: Yukon Gear Axle YP FSF9-40 Steel Spools
Brand: Yukon Gear & Axle
SKU: YP FSF9-40
Price: 504.89 USD
Availability: InStock

YP FSF9-40 Yukon Gear & Axle Steel Spools image 1

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Product: Yukon Gear & Axle Steel Spools

Category: Yukon Gear & Axle Differentials

Part Number: YP FSF9-40

UPC: 883584321828

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$504.89

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New with manufacturer warranty

Availability: IN STOCK (5+)
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(Last checked: 07/26/2026)
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Description:

NOTES: Yukon Gear Steel Spool For Ford 9in w/ 40 Spline Axles

Yukon performance spools are made from the highest quality materials to ensure high strength and long life in performance applications..

Yukon Full Spools are a cost-effective way to convert a diff to 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each Yukon spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outstanding choice for dedicated off-road and drag racing vehicles only.

Features:

Provides 100 Percent Traction To Both Wheels At All Times
Provides 100% traction to both wheels at all times
Not recommended for street driven vehicles
Fits Ford 9 in. w/40 Spline Axles
Fits Ford 9" with 40 spline axles

Fitment:

Years	Make	Model	Trim
Sorry we do not have fitment information available for this part number. Contact us for any fitment questions.

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For more information on Yukon Gear & Axle part number YP FSF9-40, you can visit the official Yukon Gear & Axle website.