I bought these two sheet metal panels years ago because they were marked 1949-50 Chevrolet. Well, they are not. The hole for the fresh air duct is 5 1/4" across where as the 1949-50 are 4 1/4" across. There were paper GM Parts Division tags with wires attached to the parts. The information on the tags gave a Chevrolet dealer in Connecticut and the part number 385483. They do not fit trucks so the other possibilty would be that the Chevrolet Dealership sold other larger GM cars - maybe Oldsmobile or Buick. Can anyone shed some light as to which vehicle these would be for? Any help would be greatly appreciated. Thanks

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