• High TCC slip RPM at increasing load
• Overheated fluid
• Slip codes

The plunger force is transferred onto the inner modulator valve. When the sleeve wears, the converter apply pressure is reduced and TCC slippage increases.

The Sonnax assemblies restore proper hydraulic clearances so fluid pressure can position the TCC modulator valve to fully apply lockup. The increasecd ratio assembly provides a firmer and quicker lockup feel.

Additional Resources