Fuel Tank Filler Neck1967-1968 Ford Mustang2 1/4 (.250) in. Inlet9 3/4 (.500) in. Overall LengthSteelPowder Coated FinishSold Individually JEGS 78759 is a direct replacement fuel tank filler neck for a 1967-1968 Ford Mustang. Made to exceed OE standards and galvanized to inhibit rust, it is a perfect replacement for your worn, leaking, or rusted stock filler neck.