Power Steering and Alternator Pullies
There's no nut or bolt to be removed first.
To put it back on, you need a stud (sae not metric, I don't know the size, I just found one laying around that fit, but I'm pretty sure it's not metric, it's an sae coarse thread), with a nut to press the pulley back on to the shaft.
Not sure about the alternator, I haven't done that one yet. Looks like it has a nut inside the pulley, then it probably still has to be pulled. It's metal so it should hold up to the force of an outside puller without bending or breaking.





