87 F250 ignition lock

How can I replace the ignition lock without the key? I lost the *%&# thing and can't start my truck!

Was looking for some info ran across your request, iI know it has been awhile since you posted about losing key but here is some info that might help on this or any future problems.Go to autozone.com click on repair info,click vehicle repair guide,suspension & steering, steering and then ignition lock cylinder. It gives details on replacement both with key and without.