hi all, i just got a deluxe cab heater setup offline from a 56 f100. I would like to change my basic heater with only defrost/blower setup over to the 4 control setup. It looks like I am missing a critical piece to have the fresh air control hooked up. Anyone know what this piece is called, or where to find it? It looks like midfifty has a vinyl boot to connect it to the fresh air duct, but not the piece i need. Should I just ditch the fresh air duct and make a custom 3 piece heater control bracket by adding in the temperature valve?
Here is what I purchased:



The piece I believe I need:


Thanks all for your help!

 

I have them. But splitting up a heater especially a fresh air heater makes the heater almost worthless. So once again you have to step up to play. Let me know if I can help