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GM 12 Bolt Passenger / GM 12P Yukon Full Spool | 30 Spline (4.10 & Up)
Yukon Spool
Photo is for illustration purposes only and may
not be an accurate depiction of this product.

List Price: $333.94
Your Price: $290.38

Status: Normally ships in 24 to 48 hours
Product Code: YP-FSGM12P-4-30

Add Cryogenic Treatment Service [+$225.00]
- Increases strength and durability of spools by 20-50%.
- Improves case and core hardness transition and microstructure.
- Relieves internal stresses and reduces microfractures.

Services are performed by Crown Race Gears.
Service times vary by season (2 to 6 weeks).

Description Compatibility Part Numbers

Axle: GM 12P
Shafts: 30 Spline
Gears: 4.10 +
Material: Steel

Spool is designed for use with 1.785" journal bearings.

How Does The Yukon Spool Compare To Other Lockers?

[ Jump To Spool Section Of Video | Crawlpedia Differential Locker Comparison ]

(To skip ahead to the Yukon Spool section of the video, go to minute 26:50 or click here.)

Yukon Performance Spools for 30 spline GM 8.875" 12 Bolt passenger car (12P) axles are made from the highest quality materials to ensure high strength and long life in any vehicle including full-size trucks with oversize tires, high horsepower applications, and off-road racing. Spools provide 100% power to both tires at all times and are a lower cost alternative to lockers. They are not recommended for street-driven vehicles and are sold as off-road and race use only.

Yukon Spool images are © Copyright Yukon Gear and Axle, used with permission.
Additional images and product descriptions are © Copyright Filthy Motorsports, LLC.
  • Replaces your differential carrier
  • 100% traction to both tires
  • Affordable price
  • 1 year warranty

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