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Old 02-05-2026, 12:56 AM   #1
UniqueOdyssey68
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Join Date: Mar 2018
Location: Idaho
Posts: 88
Question install help? VintageAir Gen4 defrost duct adapter won't fit

I am slowly working on installing vintage air gen4 system. On the driver's side, the defrost duct hose adapter supplied doesn't seem to fit onto the bottom of the defroster duct vent. I've pushed and pushed, twisted, and they don't fit together.
Is there a trick or ideas to get these together?
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The defrost dash vent is the plastic chrome version from LMC I think. These seem like 2 different types of plastic and surfaces. If the adapter had a flexible silicone end (similar to those cold air intake fittings) it would go together easy. I contacted vintage air and mentioned this, and they were zero help, and never replied to my last message. They blamed my dash defroster vent.

Thoughts? I found this thread on hose fitment, but not sure it applies in this situation https://www.67-72chevytrucks.com/vbo...d.php?t=566753
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'68 C10 true shortbed, LS swap restomod. '03 Z71 daily, '63 AMC Rambler V8 survivor
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