Please help with my 2010 Ram 2500 4x4 steering.

I found that my king pins have at least 1/8" play up and down. I'm sure that's not right. The tie rod ends on my drag link are very loose when I twist the link. Tie rod seems nice and tight. Track bar seems nice and tight. Bearings feel good. I think I'll just do the drag link and the king pins. Not sure. Don't want to half ask this but don't want to waste money either.

Cley