When I had my top replaced I did not take the opportunity to also replace the weatherstrip (dumb) but I picked up a new set this weekend. It's on my '67 of course, and I can see that the side strips bolt right in and look simple. I'm concerned about the front "header" strip. This looks like it's under a retaining strip that may also hold the front of the top in place nice and tight. Can I change this out easily? Is there some type of adhesive involved here?