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Thread: A/C box seal

  1. #1
    Join Date
    Nov 2015
    Blythewood, SC

    Default A/C box seal

    What are you guys using to seal the A/C box to the firewall; when I removed it there was some sort of nonhardining substance around it.

  2. #2
    Join Date
    May 2014

    Default Re: A/C box seal

    I use gum cord. Its available at hvac supply houses. Some guys use 3m caulk strips. they are available from most auto parts stores



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