Thumping noise in rear passenger wheel

[ArticBoxster]

Thanks for sharing your experience and knowledge with me so I could try to resolve this issue. I will check for the drop links and for broken cords..hopefully it's one of these. My front and rear tires are pratically new but for some weird reason my front tires have even wear marks only on the inside..is that normal? The wear marks are identical on both front tires..about 2 inch from the inner edge of the tires...I bought these Kuhmo's at Discount Tires and was installed by them August 2008. By the way, my neighbor suggested for me to replace the rear axles after sitting with me to listen to the thumping. He also agreed that it sounded like a flat tire but suggested that it was a bad axle...I'm a little skeptical about that.