Popping in with my experience which is similar. I used the PDFE tape
<https://www.woodcraft.com/products/slick-strips-3-4-width-1-32-thick?gclid=CjwKCAjwr-PYBRB8EiwALtjbzwS3Y6_Q4ltpYcH3pGg6Y9UDTVP1TAMQ78oRNZugj6BaP1YJBKWwiBoCYCoQAvD_BwE>
on both areas for the door on an '84. Also did and RnR on all door parts.
Worked AMAZING for about 2-3 months.
But, as noted the weight is too much and it starts to wear the tape
unevenly so it wrinkles at the edges. The ripples then start to make more
noise than before the tape.

I came to the conclusion that a sanded and well painted track on both the
rear and the bottom is the best course of action. The bottom track seems to
make the most difference as it bears the most weight. I sanded till smooth
as butter and then laid down multiple coats of black spray paint. Worked
great. Another trick is to clean that little recess often towards the front
of the van where dirt and grime get caught. It wears the roller and paint
grinding it down when dirt gets caught in it.

The rear roller seemed to have the best effort in cleaning the bearings and
being sure they roll without effort. I also sanded and painted the guide
and it helped quite well. Also put a bit of sound dampener on the back side
of the piece that covers the section.

NOW, a great place I have found for the tape is the Westie drawer (its
intended purpose) little bit on both sides of the channel and the drawer
opens nice and smooth.

If anyone has seen other applications would love to hear them!
Ryan in Asheville, NC