Dakotagrafx 7,293 Posted June 25, 2022 I have a 1965 mustang that the original owner put a eelco flip gas cap on. The original rubber that is about 3/16" thick had deteriorated after all those years and is no longer available - I found some rubber that is proper thickness - designed the holes for the mounting bolt and vent hole along with proper diameter (in graphtec pro studio) and put in the cb15u blade, that I use for rhinestone template and thick sandblast mask, - cut a perfect replacement gasket. never tell a sign/decal person that something can't be found - we make em. 3 Share this post Link to post Share on other sites