Dodge A518 (46RE, 46RH) A618 (47RE, 47RH) Transmission Hardened Billet Input Drum & Hub 1994-On This Input Shaft and Hub is designed for higher HP engines and/or Multi-Disc Converter Made for Performance Dodge Diesel Applications! Shaft is made from 300 Maraging steel and heat treated to withstand high stress and torsional loads. Hub is made from 4140 heat treated stress relieved billet steel for additional durability. Precision ground at all critical diameters. Shaft to hub splines have been increased from O.E.M. 28 to 35 splines for 25% MORE Surface Contact Tested to 2,700 ft/lbs. of torque. This Heavy Duty A518/618 Input and drum setup is one of the most sought after upgrades! It is one we sell everyday to Diesel Performance Shops!