Tamikaze asked me to take a look at her pivot cups, and what I immediately learned is that if you're squinting and calling the sweetie man over to ask if this pivot pin doesn't look like it's wobbling just a little bit, it's fine and maybe you should drink a little less green tea. Tami's pivot pins were so loose they were rattling around. When the pin is loose like that, your truck could go anywhere. Tami said that she'd go to put down her toestops and, whoop, they weren't where she thought she left them.
So I yanked her pivot cups, and here's what we found:
They're dead, they're all messed up.
Here I am modelling how it was done: you just stick a needle nose pliers into the cup, slant it slightly to catch the sides a bit, and yank it out. If it doesn't come all the way out, enough of the lip should come out so you can grab it with the pliers.
Just push the new cups in with your thumb.