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Old Apr 8, 2025 | 11:45 AM
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gcb1966
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Default 79 door glass

Morning Corvette brothers.

Quick question about C3 Blowout clip. Seems there are quite a few that ask about replacing these clips because they are rusted and/or the coating has come off. I’m in the same boat with a 79 I'm working on. My question is why is it hitting the clip in the first place?

Do they normally sit against the glass? I can’t see how that clip could move so I wouldn’t think it’s the clip.

Is the glass out of alignment in some way? In my case my glass is definitely in need of anti rattle bumpers (
https://www.zip-corvette.com/69-96-d...bumpers-4.html) other than that the glass seems to be adjusted properly.

My symptoms are:
  1. Left side - When I close the door with door glass up, the glass closes on the outside of the blowout clip. At first I though my glass my be adjusted to high, but I were to lower it then it would not be high enough for the weather strip.
  2. Both sides - as the car flexes while driving I get screeching from the metal rubbing on the glass.
Any help is appreciated as always.
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