Hunter's 1978 GMC Build
Time for a little picture dump, this is of the installation of the vintage air unit. Since the truck isn't fully together just yet, the installation is only half finished as of right now.
I had most of the plates and hardware painted to match the color of the truck, and then they were bolted on to the firewall with some silicone to keep my cab water tight.
This unit is really cool and cleans up the engine side of the firewall. You do loose a lot of glovebox space as a result but it doesn't seem like there's really any foot well loss as it's tucked under the dash. I will say that getting it up in there is a battle. It doesn't want to go.