Ford 9 Inch 35 Spline Lightweight Spool

Speedway lightweight spools give you the traction you need by locking the axle shafts together, forcing your rear tires to turn at the same speed. They're CNC-machined from forged chromoly steel to provide a more rigid ring gear mounting. This eliminates gear failure caused by case deflection or differential side-gear failure. Fits Ford 9 inch with 35 spline axle shafts. Full spool for maximum traction by locking the axle shafts together. CNC-machined from forged chromoly steel.