I would probably try 3M weatherstrip adhesive (yellow).
The driver's side window of my daughter's mustang was going up too high to where the top of the glass would hit the roof line when you open or shut the door.
Took off the door panel and where the bottom of the glass is supported in a track that supports the glass, the adhesive has come loose, so it "pivots", allowing the glass to go too high. It looks like plain old silicon window adhesive, but I'm wondering if that is strong enough for the torque and pressure put on it by the motor?
I thought about JB Weld, but wasn't sure if it needed the flexibility of the silicon where the glass meets the metal.
So what do you use to attach window glass to the supports?
I would probably try 3M weatherstrip adhesive (yellow).
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There is some stuff that is black and does appear from first glance to be silicone adhesive, but it is a whole lot stronger than the typical adhesive that you would get from home depot. I would ask a shop that replaces windows if they might have a tube you could buy. I bought some about 13 years ago from Sportsman autoglass in McKinney for about $10 in a tube the same size as a normal chalking tube.
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