30-Spline Std. Series Spool - GM 12-Bolt

The 30-Spline Standard Series Spool for GM 12-Bolt from STRANGE is engineered for serious drag racing, street performance, and off-road applications where maximum traction and controlled power delivery are essential. This spool locks both wheels together at the same rotational speed, providing consistent acceleration off the line and enhancing power transfer to the pavement.

The 30-spline design is the industry standard for high-performance GM 12-bolt differentials, ensuring robust engagement with minimal deflection under load. STRANGE's Standard Series construction utilizes precision-machined steel for tight tolerances and long-term durability in high-torque environments. The spool's fixed-engagement design allows for immediate power transfer to both rear wheels simultaneously, making it suitable for a variety of performance applications.

This spool is an excellent choice for Chevrolet and GMC owners running G80 or stock differentials who demand immediate traction response. Installation requires professional differential service and carrier replacement, so it's important to verify your 12-bolt housing specifications before purchase.