Yukon Gear & Axle YP FSF9-35 Steel Spool Ford 9 Inch 35 Spline

The Yukon Gear & Axle YP FSF9-35 is a high-performance steel spool designed specifically for Ford 9-inch rear differentials with 35 spline axles. This 2-3/16 inch deck spool provides maximum traction by delivering 100% power to both rear tires simultaneously, making it ideal for drag racing, off-road racing, and other competitive motorsports applications.

Key Features:

• Precision-machined from high-quality steel for maximum strength and durability
• 2-3/16 inch deck height compatible with Ford 9-inch housings
• Designed for 35 spline axle shafts
• Utilizes two journal bearings with 30-degree contact angle
• Cost-effective alternative to selectable lockers
• One-year manufacturer warranty against defects

Important Notes:

• Not compatible with Mark Williams differentials
• Not recommended for street-driven vehicles due to constant locked operation
• Professional installation recommended

Yukon spools eliminate differential action entirely, making both wheels turn at the same speed at all times. This design maximizes power transfer and is perfect for straight-line acceleration and competitive racing environments where maximum traction is required. The robust steel construction ensures long service life even under extreme performance conditions.