if you don't find the key,, find a socket that is just slightky too small to fit over it ,,,put the socket on a braker bar( the reason you want the socket on the B B is because you will make the socket loose over the lock tring to put the B B onto the socket ) now HAMMER the socket on to the lock at the same time every time you try to turn it off make sure you hit the end of the breaker bar ... within 4 to 5 hits ,or 20 to 25 hits of the B B it will come loose, then u can replace it wit another lock,,,or a lug bolt. jim