LUG NUTS HAVE STARTED SWELLING OR BALLOONING AND HAVE STARTED BREAKING. 3 LUG NUTS HAVE BALLOONED WHERE THEY ARE NO LONGER TIGHT ON THE STUD. THE OTHER LUG NUTS CAN'T BE REMOVED WITHOUT BREAKING THE STUD. IF I'M HAVE A FLAT, I MAY NOT BE ABLE TO CHANGE THE TIRE WITHOUT BREAKING THE LUG STUD.