Hub caps for 13" wheels

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Hi folks. My 64 Plymouth still has the original 13" wheels and wheel covers. I'm looking for hub caps. Are they different from 14" or 15" ? I've tried everything from repainting the wheels to putting tape around the wheel cover retainers and still can't get rid of that annoying "Click/Creek" noise for more than 20 miles or so. It's embarrassing to say the least. Any help would be appreciated.
Thanks, Wally

hello,
Are you still looking for a set of hubcaps?
I have 4 new tires, wheels and nice caps I’ll sell you if you would like.
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