Early A body gas cap

search e bay,,,and moparts,,but get ready,,unless you have a friend out there,,they usually arent cheap,,,only fit 63=66 A body,, maybe 62 valiant/lancer but not sure... some times on e bay you can find one cheap if no one is bidding,,and there is a guy on the early valiant barracuda web site making caps that fit,,but dont look orignal,,,there are some locking caps on e bay usually if your in need of a cap,,,hope this helps,,,i have none left,