When your hot your hot even if the pump drive is not

Calling on all you metallurgist.

Is there a simple way to heat treat the tip of the intermediate shaft to harden it? To keep it from breaking when using hi volume, high pressure oil pumps?
This is for the shaft in the magnum engine.

Always wanted to do a poll on here.
Call Tri City Heat Treat. They are in the Quad Cities.

P.S - what we polling?? Shakes? Cakes?? LOL