Yukon Gear & Axle Steel Spool Ford 9 Inch

The Yukon Gear & Axle Steel Spool for Ford 9 Inch rear axles replaces the factory differential with a solid spool. Both axle shafts are locked together and turn at the same speed. It is a common choice for drag racing, circle track, and other high-traction builds. It is also called a differential spool or locked rear end spool.

Key Features:

• Steel construction for strength and durability under high torque loads
• Solid design with no internal clutches, gears, or springs to wear out or need adjustment
• Locks both axle shafts together for constant, equal power delivery to both wheels
• Designed to fit the Ford 9 inch differential housing
• Available in multiple axle spline counts to match your axle shafts

Important Notes:

• A spool gives full-time lockup, so it is best for racing and dedicated performance use. It is not recommended for regular street driving, where it can cause tire scrub and added drivetrain stress in turns.

Yukon Gear & Axle is a well-known maker of ring and pinion sets, differentials, axles, and driveline parts. Choose the spline count that matches your axle shafts.