Mini Spool 8.2 GM 10Bolt 28spl

The Mini Spool 8.2 GM 10-Bolt 28-spline is a precision locking differential replacement designed for serious street and strip performance builds using GM 10-bolt rear axles. Whether you're upgrading a vintage Chevy truck, a classic muscle car, or modernizing a performance hot rod, this component eliminates the torque-biasing limitations of open differentials and delivers consistent power delivery to both rear wheels under acceleration. Built by ALLSTAR PERFORMANCE, a trusted name in drag racing and performance modifications, this mini spool is engineered for drivers who demand reliability and repeatability in high-stress driving conditions.

The 28-spline design matches your existing axle shafts, requiring no custom modification to your driveline while providing a full mechanical lock during load. Unlike clutch-type limited-slip differentials that can fade under sustained high-temperature driving, the mini spool uses a solid internal geometry to couple both wheel speeds, ensuring that acceleration doesn't rob traction from either rear wheel. This design is bulletproof in competition environments—no clutch packs to wear, no lock-up delays, and no maintenance beyond standard gear oil changes. The compact 4.5 x 4.5 x 5-inch footprint and 4.74-pound weight make installation straightforward in most GM 10-bolt housings without requiring extensive modifications to suspension geometry or brake line routing.

This mini spool is ideal for bracket racers, weekend warriors, and anyone running a dedicated drag setup or autocross platform where predictable, bias-free wheel speed control wins races. It's equally at home in street-performance applications where consistent traction off the line matters more than turn-in feel on curves. The 8.2 gear ratio specification confirms compatibility with GM 10-bolt axles; verify your housing code (typically stamped on the carrier) and confirm 28-spline axle shaft fitment before purchasing. Installation requires dropping the rear cover, removing the factory carrier, and bolting in the new mini spool—a task well within reach of any enthusiast mechanic with basic rear-end service experience and proper safety precautions.