Does anyone know where I might be able to purchase the fiber washer/gasket that sits between the chrome gas cap and the escutheon that connects to the gas tube and gas tank on the rear deck of the 1960 TR3A? I searched my normal suppliers and no one sells the item. The OEM washer for my model year is definitely fiber and not rubber, but a rubber substitute should work if it is not too thick. If a replacement part is not available, has anyone successfully made a washer from gasket material? I am simply trying to help reduce the gasoline fumes that tend to collect in the garage after I have driven the car.