The '61 and '62 Full Size Chevy Cowl Vent Grilles are the same. Not sure what you have there though. It is not for a '61 or '62 and I don't recognize it at all. By the way, Hollander Interchange Manuals are great, but they don't cover many of the smaller parts, including these grilles. Drop by the other Impala site if you get a chance. We are more focused on the older model Impala cars there:
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