My 1985 has all new seals on the doors as well and after a year they finally are getting a little easier to close. Unfortunately it's just kind of how it is with the aftermarket seals available today. My "60" door was especially hard to close (and still kind of is). I found that the main issue is the leading edge of the seal. It starts putting pressure against closure when the door is still a few inches from closing. This might be able to be remedied bu adjusting the hinges, but for me panel gaps/fitment > easy closure.

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