65 dart can I get Led lights for it?

The rules for lens colour/LED colour used to be simple: red LED behind red lens is YES (= red light), white LED behind red lens is NO (=dim brownish-pink light). The situation is more complicated now; we have different kinds of white LEDs, some of which produce enough red and/or amber light to be successfully used behind a red or amber lens, and there are some LED vehicle lights on the market that use that strategy. But this is all theoretical; the practical answer to this specific question at hand is to use the bulbs as linked: red ones behind a red lens, white ones behind a white lens.

It is a big damn shame there's no white or amber 1157 version of those particular Philips LED bulbs, because they are the only ones that work effectively/safely with fresnel optics -- that's the kind that has a round "bullseye" in the middle and concentric rings around that, used in a lot of old car lights including the '63-'66 Dart and Valiant front park/turn lights.

The custom LED tails built by 66DVert are documented here…if you read that thread, you'll see there's a lot to think about beyond just "Yep, it lights up red". The previously-linked Philips LED bulbs work perfectly in any A-body brake/tail light as a direct drop-in. You don't get the cool perimeter-ring taillight effect of 66DVert's custom work, but you also get off a lot easier in terms of cost and effort.