ok guys my truck has been eating my passenger side tire right on the outerside wall and i cant find the problem. nothing is bent the alignment is pretty good any ideas?

 

How do you know the alignment is pretty good? The main cause of eating a tire on the outside is excess toe-in (unless you're rubbing but I think you'ld know about that). You're trying to "roll the outside of the tire under" as you drive it.