There are some differences in part numbers for 2dr within a year and between years, don't know what year you are looking for. Chrysler and Dodge look the be the same.
A copy from the parts manual of 66, 67 and 68
68 is a one year only for the C-body 2dr HT vent window seals, any 68 Chrysler 2dr, 68 Dodge C-body 2dr HT or a 68 Plymouth 2dr HT (only Fury III (fasttop) or V.I.P.) will fit.
Thank you! I'm also looking for vertical Quarter Window Seals O.E.M. # EC-16 2782560. They measure 3/8 where they go into the chrome piece. The ones everyone are selling measure 1/2 at the base.