TRW power steering pulley removal

I have done a lot of Saginaw and Federal but the 68 Charger I am working on has a TRW pump with a 1/2" hex in the end of the shaft. Does the pulley on these types of shafts screw on or still pressed? Do not want to damage until I know for sure. FSM was sort of worthless in this case. Thanks in advance for any help.

Straight shaft, pull it, I used the tool from autozone to pull it.