In reading some of these posts, I was thinking the same stuff as Hoppy.. RU CrazY? Take it apart, clean the old grease out, re-pack the bearings, grease up and re-assemble. ta daaaa! Whacking the goal posts with a hammer got the caps off everytime for me... even the one that only popped off a little because of the glue grease stuck to it.. I popped it off the rest of the way with a screwdriver...
Anyone else have the thin part of the pin and the thick parts pop apart? I have found quite a bit of that. I put them back together with locktite...