[BigRed76]

67chevyredneck, i've thought about that idea also. I've never actually seen the a/c vents first hand, do they completely close so if you wanted just defrost you could close those vents?

The other idea I thought about was maybe taking the under dash air box for an A/C truck and mounting it under the dash to allow for the proper outlets for all of the dash vents. And then leave the existing heater box on the firewall with the heater core in it...

I know that might sound like a lot of work for just vents, but I'd still rather not install a compressor, evaporator, condensor, and all the other stuff that goes along with A/C.