terribly sorry, I was typing faster than my brain and so mushed some thoughts together. the windshields are essentially just glued in place so yes, if you get a new one, they will reglue it. (check for rust while it's out!) the late model XJs used a 1 piece rubber moulding gasket trim thing that replaces all the metal trim. it is a good upgrade and will help keep water out, but yes, the glue is the important part that seals things.