I got my soft sealant strips from Detroit Muscle Technolgies and they worked well - but be careful, it is easy to tear them.
After my 1973 car came back mostly restored, I installed the stainless trim around the driver and passenger side windows myself. The trim was in good shape and came from a 72 I owned earlier and used for parts. I had a new vinyl top put on, and that obscured the screw holes for the trim. I used the holes in the trim as the guide to find the screw holes, and opened them up with an awl. More than a little tedious, as it turned out.
After I opened up the screw holes, I fitted the drip rail trim up first, using the somewhat larger, flat headed cross tip pattern screws - I still had some from the previous car and I got more at a Mopar car show. DMT also has them. You have to jiggle the two-piece drip rail trim a bit to get it to match the screw holes. It really wasn't quite perfect, which makes me wonder if there was some variation between years on the screw hole pattern, or even between cars coming down the line.
I put the new sealant strips on the top of the long weather strip channels, replacing the old material, then screwed the channels in place. The screw holes in the channels should match remaining holes in the window opening, not previously used to hold up the drip rail trim.
It may not be a perfect match, if the trim came from another car.
I included photos - as you can see, I ran into a couple of significant issues.
First, the very tail end of the drip rail trim where it comes down to the quarter panel at the corner of the rear window, was too long. It hit the top of the panel. I think this is because the body shop replaced the quarters and somehow the new ones are up a tad compared to the old one. I had to carefully file down the stainless steel trim edge a bit so it would fit. Not ideal, and I have to touch up the paint at the corners, but is good enough.
Second, for reasons I do not yet understand, the long trim piece that defines the back edge of the vinyl roof does not come around and meet the drip rail edge like it is supposed to. This car has a new deck filler panel, and it is unclear if it ever had a vinyl roof originally. My restorer had to carefully fit the trim piece and drill holes - possibly something is out of line, even though it looks right and matches the vinyl top. We could not telescope it out more without separating the two halves of the trim piece. The result is a half inch gap between the roof rail trim and the vinyl top trim, as you can see in photo 153452. I would welcome opinions here. Possibly someday I can correct this.
Also, if you are doing the back window trim, mine went onto the clips we installed without difficulty until we got to the right rear lower coner (153513). It sticks up a bit and I haven't sorted that out yet. It may be a slightly misplaced or misaligned clip. Not sure.
Anyway I hope this helps.
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