Contact seller
I think they should all be about the same (other than maybe Barracuda) but Dart and Valiant should be close enough from '63 to '66. Goes from the nipple in the filler tube over to to the lip between the inner and outer wheel well then pokes though the rubber floor seal show here. Anyone have one they would part with? There is also a clip that clips it on the lip that I could use as well.