Matl steel per ams 6412; hardness per brinell 302 min and 341 max; 14.364 in. Long; shaft stepped from 4.3200 in. Min and 4.3205 in. Max od to 3.307 in. Min and 3.312 in. Max od; bore 2.437 in. Min and 2.438 in. Max dia; includes bushing part numbers 110298, 111708 and 66112