cluck and rattle after leveling+ bilsteins

[artacus]

So after a few hundred miles with 5100's and leveling kit, I seemed to have developed a clunk rattle that appears to be coming from the front when going over sharp bumps or dips. I have noticed it getting progressively worse and really annoying. I have tried  retorquing and smacking everything with a dead blow to try and replicate the sound while I'm under it with no success. So the only thing I have left to check is the strut rod pin and nut. I found a few threads online about this and hope it will help. Now my concern is can I loosen the nut while the strut is installed without any danger? Just seems a bit odd but I thought I saw folks take the nut off completely add washers plus locktite and sometimes adding another nut. Sorry for the rambling, I tend to post late when I'm really tired lol.