Motive Gear FS9-31LW Full Spool for Ford 9 Inch 31 Spline

The Motive Gear FS9-31LW is a full steel spool designed for Ford 9-inch differentials with 31-spline axles. A spool replaces the standard carrier and spider gears, locking both axles together for 100% power transfer to both wheels at all times. This makes it an ideal choice for dedicated drag racing, off-road competition, or any application where maximum traction is essential.

Key Features:

• Full spool design for Ford 9-inch rear ends
• 31-spline axle compatibility
• Machined from high-strength steel for durability
• Locks both axles together for equal power distribution
• Eliminates differential spider gears and side gears
• Race-proven design for drag racing and off-road use

Motive Gear spools are precision-manufactured using state-of-the-art CNC machining and are extensively tested to meet the demands of high-performance racing applications. Note that spools provide no differentiation between wheels, so they are not recommended for street-driven vehicles as they will cause tire wear and handling issues during turns.