Um.. one problem about these the nut that you tighten or loosen, can't be loosened. The screw that it screws on to is too short, so it looks like it's about to come off. Is it supposed to be like that or do I have to break the trucks in I just got them like last week. Or am I screwed and can only have my trucks tight. Because I'm afraid that the nut might come off and I might loose it.

no problem loosening them until the top of the nut is on the tip of the kingpin.

if they are still tight you just have to skate they will loosen up.