The Transmission Specialties Powerglide Performance Racing Transmissions 2512-2500 is a purpose-built racing transmission engineered for serious drag racing applications producing up to 1,100 horsepower. Built by one of the most respected names in the performance transmission industry, this Powerglide combines race-proven durability, handcrafted assembly, premium internal components, and exceptional consistency. Featuring a 300M input shaft, billet steel clutch hub, full manual valve body, trans brake, and integrated transmission shield, this transmission is designed to deliver dependable performance under extreme racing conditions.