what purpose do those serve?Maybe he means the little joining pieces?
I think he means the chrome stripsNot quite sure what he means? Both screens are held in place by the seals. There is a trim that fits within the rubber seal channel (which is often missing due to damage or personal preference) but it does in no way help retain the window.
Window rubbers for Z's can be had in two flavours - with or without chrome trim. Don either bought the wrong ones or didn't refit the chrome trim.
I remember from his original thread that he bought the aftermarket "Euro"/'Cal look' smooth rubbers, which do not have the OEM stainless trim sections.
Zooming in on this picture at least the rear seal seems to have the trim channel so Don either thought he'd bought the smooth ones or just refitted the old ones.
i'm interested to see how much filler was used on those 3/4's.
I wonder if 'The Don' could be pushed back here to have a look at it now.
Sorry been busy with work and Xmas.@TheHulkGB help us out here fella!