Spools and Mini Spools

Spools and Mini Spools are drivetrain components designed to deliver maximum traction by locking both rear wheels together, forcing them to rotate at the same speed. Commonly used in drag racing, off-road, and high-performance applications, spools replace the differential carrier, eliminating the ability for wheels to turn independently. This results in equal power distribution, improved straight-line acceleration, and increased durability under extreme load conditions.

Mini spools offer a similar function but are installed within the existing differential carrier, making them a cost-effective option for those seeking full axle lock without a complete carrier replacement. While both types reduce maneuverability during tight turns, they provide a significant advantage in situations where traction and power delivery to both wheels are critical. Spools and mini spools are ideal for setups where differential action is less important than consistent torque distribution under demanding conditions.