Ask and you shall recieve! (Flip Top Gas cap Adapter)

And mounted the adapter. I used a thin o-ring to form a seal between the adapter and the filler end surface (a bit of silicone should also do the job). (Photo 7)


I marked and drilled starter holes in the adapter and used self tapping screws to mount the cap. (Photo 8 )



And woola my 65 Cuda now has a “flip top” filler cap (Photo 9)