How to modify ac blower box for a tubbed firewall?

[DGONZO]

So I just tubbed my firewall and now I need help on how to section the blower box and still have my a/c and heater function normal. Any advice or pics of ones previously done would help. Sorry if this post is not related to where I posted it to I'm new to this.

 

[DRAGGIN95]

The way we have done it is to remove the assmebly, and drill through just the fresh air duct inlet plastic welds, and remove just that piece and it's blend motor, then seal off the fresh air intake on the underneath of the cowl with a piece of sheetmetal and you are done. This way the heat and air both work on all speeds correctly and it doesn't freeze up, it's just on permanent recirculate which is where I always run mine anyway. You don't have to do any other mods to the under dash box, also this will clear pretty large tubs, not just small tubs.

 

[DRAGGIN95]

I don't have pics but Ext. Dragger or Sierra might.

 

[DGONZO]

Do you have a pic of the area you are talking about?

 

[DRAGGIN95]

No I don't but hopefully one of them will chime in and post one. I just never have gotten a pic of it.

 

[DRAGGIN95]

Here's a link to my FB page with pics of lots of builds and some firewall tub pics. https://www.facebook.com/permalink.php?story_fbid=725463567503654&id=221465291236820

 

[DGONZO]

You are talking about the box right in front of the blower motor facing the firewall correct? Do you leave a area open for air to come in? Or seal it off completely?

 

[DGONZO]

Right on man thanks for your help!

 

[DRAGGIN95]

Yes the entire HVAC box, just remove the fresh air inlet duct and servo motor, and leave the box be, no need to do anything else to it. Just seal off the inlet of the cowl.

 

[DGONZO]

Ok cool thanks.