There was some discussion a while back on the safety of the antiquetd steering lock and whether it could lock while the car is in motion. I suspect a previous owner took that to heart and filed down the pin.
I beleive the steering lock is a Euro (German) Ford Capri (not a Mercury Capri) and is almost impossible to come by with the key buzzer pin as they don't use such in Eurpoe.
Your best option maybe to find soemone that has had a barrel/key fail and make one from two.
Good luck
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