P/G Kolene Steel Plates

The TCI P/G Kolene Steel Plates are premium clutch friction discs engineered for high-performance Powerglide automatic transmissions. This set of six nitride steel plates delivers the durability and engagement characteristics required for high-gear operation in street, strip, and off-road applications where transmission reliability and consistent shift feel are non-negotiable.

Each plate measures 0.070 inches thick and is constructed from nitride-treated steel, a process that hardens the surface to resist wear, thermal stress, and the repeated friction cycles inherent in high-load transmission operation. The nitride finish extends plate life significantly compared to untreated steel, reducing oxidation and maintaining consistent friction coefficients across extended use. For builders working with modified Powerglides or stock units running harder than original specifications, these plates provide the material science foundation necessary to handle elevated torque without premature slippage or glazing.

This set is purpose-built for high-gear clutch packs, making it ideal for transmission rebuilds, performance upgrades, or replacement of worn friction material. Powerglide enthusiasts—whether building a muscle car, street rod, or off-road machine—rely on OEM-equivalent or superior aftermarket clutch plates to ensure predictable engagement and avoid the lag or shudder that worn plates introduce. TCI's Kolene Steel formulation is recognized in the transmission rebuild community as a dependable choice for maintaining both factory performance and upgraded power levels.

Proper clutch plate selection is critical in automatic transmissions; undersized or incorrect material can result in slippage under load, overheating, and catastrophic transmission failure. These TCI plates are engineered to OEM dimensions and fit standard Powerglide bellhousing architecture, simplifying installation for experienced rebuilders and transmission shops.