door jamb switches

I am running into a problem with the door jamb switches on my 73 Dart Sport. According to the parts houses a BWD part # S227 and S208 are the correct OEM switches for this car. However these are 7/16 size switch and the ones in my Dart are a 9/16. Can anyone tell me what is up with this. Can you give me any part #'s that will be correct with a 9/16 bolt pattern. Thanks