Suncaost Billet Input Shaft | 01-19 GM Duramax

Suncoast's input shaft for the Allison transmission is constructed of heavy duty 9310 vacumelt steel providing a 50% increase in strength over the factory shaft. Each input is precision ground for high dimensional accuracy with a larger radius at the turbine spline for additional strength and durability.   Features & Benefits: Increased Strength & Durability 9310 Vacumelt Steel Construction 50% Stronger Than Stock Suitable For Extreme Applications Fits The 2001-2019 GM Duramax