Swapping A/C out for just heater question

[cheapstein]

I have a 1979 K10 with a 1984 cab on it.  The cab is an A/C cab, but everything is missing from it to run A/C.  My question is, can I take a heater box, fan, and heater control switch from a 1978 C10 and put it on the '84 K10 firewall.  I notice right away that the heater core hose come out in different locations, and obviously the A/C fan box is much larger than the heat only fan box.  The reason for me doing this, is I don't want to spend the money to add the A/C if I don't have to.  Especially since I have everything else from another truck to eliminate it.  Thanks in advance.

[123 pugsy]

Firewall should be the same, but you'll have to cut some places and fill others.

[baddogg79]

I got one if these for my 73.

http://www.acdelete.com/pages/73-90_Truck.htm

I got it off ebay, but you can buy it directly from them now. Nice product!

[77c15]

Kind of pricey but looks like a very nice piece.

[cheapstein]

Nice find.  Kind of pricey, but it might be worth it to not have to cut up the fire wall.  Thanks

[baddogg79]

No problem, I think it looks great in my 73.

[VileZambonie]

You could probably make something nicer and cheaper out of stainless....