Re: 1969 outer grille
aluminum anodizing is only a few microns thick, therefore, just about any size scratch will be through the anodize surface.
You could probably just try to polish the scratch to make it somewhat shiny and blend in.
There isn't a way to fully remove it without compromising the anodize.
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1967 C10 Step side
1968 C10 Step side
1970 Chevrolet K/5 Blazer
1972 Chevrolet K/5 Blazer
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