Garry wrote:Good grief. These little things are amazing according to the reviews. I have no idea how they can possibly affect the sound quality of the ICE unit but anyway.....
I replaced one of the worn rubber ones on my car with a new rubber one. The door sounds nicer when it shuts. That's it. No other improvement. I'd expect a similar result with the Delrin blocks.
A rattling door might be bad for the sound quality from the speakers.
A worn out bush (!) might allow the door glass and its runners etc inside the door to rattle. [My driver's side ones rattle again despite a new nylon bush in the runner a couple of years ago.]
Maybe properly fitting stiffer bushes might help slow down door droop over the years.
If a group buy dropped prices significantly I might be in.
My car isn't at home at the moment so I can't check but don't think they're philips screws as described somewhere in one of the links here. Maybe torx?