Flip top gas cap on a 68 Barracuda

67 and 68 has the swirl polished center and 69 has the black with the fuel on it. No trim rings are used on the Barracuda. The trim ring was for a B-Body that also used the same caps as the A-Body.

67 and 68
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69
View attachment m1PdYMVb2ZB6ZdsY5zS8u5A.jpg