Checked on the grooves today. The hole where the cap goes on has a lip and the groove is a tad bit furter in, if that makes sense. You can just barely see the groove in the above pic but the lip is not visable. It's impossible to get a pic of the lip.
Actually, if you look at the pic of the back of the wheel, you can just see the lip......
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DAN
1965 GTO TRI-POWER
1970 Z28/RS M-22
1954 Corvette
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