Overhaul Kit Ball Spline

The Overhaul Kit Ball Spline from BERT TRANSMISSIONS is a complete tailshaft housing rebuild solution engineered for high-performance drag racing and street applications where transmission durability demands precision engineering. This kit addresses the wear patterns inherent to ball spline tailshaft designs, supplying everything needed to restore internal components to OEM specifications or upgrade to improved materials. Mechanics and transmission builders rely on this overhaul kit to eliminate slack, noise, and premature bearing wear that compromise power transfer and vehicle reliability.

The Overhaul Kit Ball Spline contains precision ball bearings, high-temperature synthetic grease, OEM-grade seals, and a wear ring—each component selected to restore the tailshaft housing's load-carrying capacity and rotational smoothness. Ball spline tailshafts experience concentrated stress at bearing contact points; this kit replaces degraded components with tight tolerances that minimize radial play while maintaining optimal film strength under extreme torque loads. The inclusion of modern sealing materials reduces fluid weeping and extends service intervals, critical for competitive builds and street machines operating at sustained RPM ranges where heat and pressure amplify component fatigue.

Transmission enthusiasts, independent shops, and BERT transmission owners benefit most from this kit during planned overhauls, after high-mileage service, or when addressing noise and vibration complaints that indicate bearing degradation. Installation suits any BERT ball spline tailshaft housing; the compact kit (0.44 lbs) fits easily in a technician's service kit and requires standard transmission rebuild tools. Whether supporting a stock restoration, a performance street build, or a dedicated drag racing application, this overhaul kit ensures the tailshaft housing performs at its engineering potential with minimal downtime.