Need correct gas cap that fits flush
Ok, here you go. First picture is an original '74 Duster filler tube and an original '71 Dart filler tube. The '74 tube uses only 3 screws, and you can see there's nothing threaded in the filler. The '71 is from a dart, you can see it uses 4 holes and you can see that they're threaded into the filler itself
Next up is the quarter panel, first the '71 - the holes are oversize, and you can see nothing threads into them. The screws thread into the filler neck flange that goes behind the quarter
The '74 Duster. The filler in on the outside of the quarter, and you can see the holes in the quarter are what took the threads. I use a flip top adaptor on my car so that's what the extra hardware is for, I drilled new holes so I could run longer bolts with nuts on the back to keep my flip top from walking away. I drilled them offset from the original holes in case I wanted to go back to the original cap and hardware.
The rest of the pictures from the '74. I pulled my flip top adaptor so you can see how everything fits with the stock cap.
And a couple more, the original '74 cap in the original filler neck and the back of the cap for reference.
Ok, here you go. First picture is an original '74 Duster filler tube and an original '71 Dart filler tube. The '74 tube uses only 3 screws, and you can see there's nothing threaded in the filler. The '71 is from a dart, you can see it uses 4 holes and you can see that they're threaded into the filler itself
Next up is the quarter panel, first the '71 - the holes are oversize, and you can see nothing threads into them. The screws thread into the filler neck flange that goes behind the quarter
The '74 Duster. The filler in on the outside of the quarter, and you can see the holes in the quarter are what took the threads. I use a flip top adaptor on my car so that's what the extra hardware is for, I drilled new holes so I could run longer bolts with nuts on the back to keep my flip top from walking away. I drilled them offset from the original holes in case I wanted to go back to the original cap and hardware.
The rest of the pictures from the '74. I pulled my flip top adaptor so you can see how everything fits with the stock cap.
And a couple more, the original '74 cap in the original filler neck and the back of the cap for reference.
