if you are looking for an original used part, you might want to do a search at ebay. if you are talking about the "grill" on the dash top, i believe that will be your only source as it is not being reproduced. if ou are talking about the defroster duct behind the dash, you might want to chek ebay or if you only want "new" you should check some of the more popular parts suppliers like corvetter central, ecklers, volvetter, etc.
It is the defroster duct that I need. Not the grill.
There was one on Ebay, but I tried to contact the seller to find out about shipping and got no answer. It also said that it would fit a 68 to 82. I was going by his ad on the years. I figured since he didn't answer, maybe someone here had one or knew where I could get one.
Well, now I need one for a 68 to 77.