I have a 67 or 68 Mustang GT gas cap for sale. This one came in a box with F3ZZ-9030-B on the box but it did not have the extra small locking gas cap so I don't know if a previous owner just placed it in this box or what. This could also be used on a Shelby if one wants to remove the GT emblem and pace the Shelby stick on the cap. This piece is in very nice condition. Price is $375 plus shipping. Email gandcmurphy@rogers.com if interested. Thanks.