Ohh crap

[blazinzuk]

Okay so I had it in my head it was really simple to remove the whole ac system from the truck and get that huge thing off the firewall. Its interfering with my wheel wells and battery placement I want. So its not that simple it looks like. So what do I need. Do I need the whole thing from controls to heater core box to blower motor from a non ac truck. Or is a simpler way to do this, I don't have a donor truck and I see this getting kind of expensive as I no longer have my contact at the wrecking yard

 

[dyeager535]

You need all that you describe, plus you need to make a plate and affix it to the firewall to cover up the hole the AC unit leaves. It doesn't mount in exactly the same place.

 

[chosen(1)]

I'm actually doing the same thing right now. The PO removed the evap core housing and left the hole in the firewall, so I screwed a piece of sheet metal over it. I spent last night removing all the ducting and wiring for the HVAC system because I decided a Mojave heater would be the easiest way to solve the problem.

 

[primerk5]

This is what you need to make it easy to delete the ac
http://cgi.ebay.com/ebaymotors/1973-to-1991-GM-Truck-Blazer-Suburban-AC-Delete-Box_W0QQcmdZViewItemQQcategoryZ33548QQihZ015QQitemZ250027346539QQrdZ1QQsspagenameZWDVW

 

[blazinzuk]

I think I will try to fiberglass something to that effect of build it out of sheetmetal. Question do I need to incoporate the big hole that the evap left into the blower box or can I just modifiy the blower box and cover the hole. This is assuming I use my current HVAC system and heater core controls etc.

 

[Sandman]

There are wiring changes for the motor control also. If you keep the AC version, you'll have to enlarge the hole for the resister array.

 

[dyeager535]

You might want to check the ductwork, I'm thinking that is different as well, at least where it meets up with the heater box. The stuff beyond that connection is certainly different, but as long as you can get air into that ducting, it doesn't really matter.

You'll also lose some heating/cooling capacity unless you get a heavy duty heater setup, or re-use the AC fan, as the stock heater setup doesn't move as much air. Heater box is different on that as well, since the heavy duty heater and AC setups use a vent to cool the fan motor.