power steering pulley install??

How do you install the power steering pulley on a pump from a 68 Barracuda with a 318? There isn't a threaded hole for the installation tool. It's just a solid shaft. Didn't want to just press it on for fear of damaging the reservoir.
Ok hope this helps the next guy. So I was able to put the pulley on. It eas keyed but required some significant hand pressure to start it. I needed to expose some threads first to start the nut to draw it in. Not easy because you don’t want to damage those bearings. I had to walk/rock it on by hand to get it to move down the shaft.

E4B3D2BE-9507-4F0A-875F-65F4B780D798.jpeg

2BF65FB7-6E58-4BA8-929C-CF4B4A8CA671.jpeg

EA7987B8-11F7-4D3C-9725-8271C1D5B6C1.jpeg