Probably a tough one to find. My parts book says 1978-1990 will work. Here is a few part numbers to search for #4084622, #4083417, and 4354377. I searched a few parts dealers with no luck. I see you are from Arizona, surely some salvage yard has one setting in it.
Re: 78 dodge weather stripping
#744273 January 05th 2019 11:31 amJanuary 05th 2019 11:31 am
Hi Bucky 84 I have the windshields and the 2 front doors and all the felt in stock you send me your old weather stripping. I can make this other door up for you. I all the flea in stock. Drop me an email firstname.lastname@example.org my name is Bill or at email@example.com.