this weekend i noticed the front tires are wearing out a lot faster on the outside than the rear tires or the inside of the tires. I bought these tires new Summer 2011 and probably put 15000 miles on them. I have actually rotated them at 7k miles. Now the only thing that i have done lately to the front suspension is changing the sway bar links... So before i take it in for alignment, is there anything i should look at (consider changing) before i do the alignment.

Thanks