Well I don't know where you have tried already; but I would check with Impala Bob's and the other specialty yards located in the Desert southwest. I don't think you are going to find a NOS one sitting on the shelf at your local Chevy Service Parts Department, but it doesn't hurt to ask.
Do a search , a nation wide search on Craig's List for someone parting out a 62-63 Impala. Most of the Impala sites have a classifieds section similar to this site. Put a wanted add for the parts you need. Its free. By the way, Welcome.
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