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Old 05-02-2021, 11:01 PM   #1
vet57air
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66 big back window gasket bulge

i installed this window several months ago and now seems this spot is bulging down and pulling away from the glass. Anyone know a possible reason?
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Old 05-03-2021, 07:34 AM   #2
The Rocknrod
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Re: 66 big back window gasket bulge

I seem to remember in this video he was mentioning that. Or was it during install?...
https://youtu.be/1dPlLO7qyrc
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Old 05-03-2021, 11:02 AM   #3
vet57air
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Re: 66 big back window gasket bulge

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Originally Posted by The Rocknrod View Post
I seem to remember in this video he was mentioning that. Or was it during install?...
https://youtu.be/1dPlLO7qyrc
I watched this video today, twice (not to mention months ago when I did the install) and I don't see anything to do with my issue? This bulge was not there when I first installed but came gradually after months.
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Old 05-03-2021, 01:20 PM   #4
vin63
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Re: 66 big back window gasket bulge

The couple of times that I helped friends with that type of bulge has been that the bead lock strip was not completely seated or started to pull away and it allowed the seal to distort.
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1963 C-10: Deluxe-optioned cab, shortbed, fleetside
Pontiac 462 ci, Kauffman D-Port alum. heads
4L80E, narrowed sheetmetal Ford 9-inch
Tubular front and rear suspension
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Old 05-03-2021, 03:06 PM   #5
vet57air
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Re: 66 big back window gasket bulge

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Originally Posted by vin63 View Post
The couple of times that I helped friends with that type of bulge has been that the bead lock strip was not completely seated or started to pull away and it allowed the seal to distort.
Good to know. Thank you. I had screwed up the chrome on the strip in one place and was going to replace anyway.
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