Thread: 1974 GMC 15 Hundred - Vacuum Hose Questions
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Old 09-08-2014, 12:19 AM   #3
Gregski
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Re: 1974 GMC 15 Hundred - Vacuum Hose Questions
Quote:
Originally Posted by geezer#99 View Post
To the thermac switch on the front of your intake.
This little jobie?
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