Powerglide High Gear Hub

The TCI Powerglide High Gear Hub is a precision-engineered clutch hub assembly designed for high-performance Powerglide transmissions. Built for serious street and drag racing applications, this component handles the demanding torque loads and engagement cycles that upgraded powertrains generate. Whether you're rebuilding a classic muscle car, modernizing a vintage hot rod, or preparing a competition vehicle, this clutch hub delivers the reliability and durability that separates a quality rebuild from a costly failure.

Manufactured from high-strength steel, the Powerglide High Gear Hub resists wear and fatigue under repetitive clutch engagement cycles. The high-gear design specifically addresses the mechanical requirements of the direct-drive coupling in a Powerglide transmission, ensuring smooth power transfer while maintaining engagement integrity under boost, nitrous, or heavy acceleration. The precision machining and strict tolerance control inherent to TCI products guarantee proper fit within your transmission case and reliable performance across thousands of heat cycles and shifts.

This hub is essential for anyone rebuilding a Powerglide transmission destined for performance use—whether mild street duty or all-out racing. Installation requires transmission disassembly and should be performed by a technician familiar with Powerglide internal assembly. The compact design (5.8 x 1.55 x 9.25 inches) and lightweight construction (0.97 lbs) ensure straightforward handling during rebuild. Proper torque specifications and assembly procedures, found in your transmission rebuild manual, are critical for optimal results and longevity.