I've had good luck having the stealer cut new keys from the vin number. Keys, especially hardware duplicates,wear out. The cut keys are much better. The stealer wasn't too bad for the keys,$5. It was the only deal I,ve gotten from them.
The ignition switch is a two piece assembly;
1- key and lock cylinder and
2- the electric part, (on the 96 and up) the two are on the steering column, older models (93 for sure) used a rod to from the key cylinder to the electric part mounted on the column.