The same goes for the blower motor backing plate position. Some say that the sectioned piece was at 3 o'clock position while this one (72 export shown above)is at the 6 o'clock position. Sometime in the 70's my car was quickly painted but they just painted over the original plate which has the sectioned part at the 3 o'clock position. Funny thing is, you can hear from 10 people who worked the line and you'll get 10 different reasons why things were done that way.