You can use a socket which is a shade smaller than the locking wheel nut. This must be a tight fit. Hammer this on and remove the locking nut. Now you need to get the locking wheel nut out of the socket by drifting it out with a drift. Or you can buy some locking wheel nut removing sockets which screw on the opposite way to the locking nut. I have a set if you want to borrow them. Hey,that would be a nice run out for the Crossfire to.

BTW. You will need a new set of locking nuts to fit afterwards

Jon