Transformative Engineering for Racing Excellence The General Motors Turbo-Hydramatic 400 (TH400) transmission is a powerhouse in the automotive world, known for its robustness and versatility across various applications, from off-road trucks to drag racing. Despite its impressive performance credentials, one key aspect where the TH400 has room for enhancement is efficiency, particularly in racing scenarios. … Continue reading Elevating TH400 Performance: The Revolutionary Sonnax Smart-Tech Drum Module