my tire iron does not fit my lug nuts. tire iron fits 13/16 and installed lugs are 1/2-20. which are original? do i have the wrong tire iron or the wrong lug nuts? google gives both sizes as available and threads from all over claim one or the other is correct.
No,...some one may have changed the lug nut from 13/16 to 3/4. The thread size on the stud remains the same (1/2"-20), regardless of what size socket (or lug wrench) is required to take them ( the lug nuts) off.