Thanks Luis, I'll give the dealer a call. Crazy thing is, this part isn't shown as being part of the NA market cars, just Euro. I think the '76 models might have been a transitional car, in that some of the parts aren't represented in the NA parts diagrams. My airbox is a '77+ style box, that isn't in any part diagram that I can find either. Since I got the car from the original owner who wouldn't have changed it, I'm sure it is original to the car.