I am running 235/60r14 up front and 245/60r14 in back. I am wondering if it is not in the sway bar area....or maybe bad shocks? to much play allowing them to rise and far catching the wind a bit? Not that that is noticeable but....
Those tires don't seem tall. I think TOHCan has the right idea with the suspension. I wouldn't rule out bad shocks though.
"An ignorant man thinks he knows everything, a wise man knows he doesn't."