Performance Automatic Hardened Input Shafts

Quality, performance and value make these hardened input shafts from Performance Automatic an essential component for anyone looking to raise their transmission to the next level. Built for strength, designed for competition and trusted for its reliability, these hardened input shafts are a perfect addition no matter what your application. Custom forging from 4340 non twist steel produces the toughest shaft around. Hung style heat treating and a classified cool down process produce a tensile strength of 185,000 psi and the capability to handle an extremely fast rate shear load.