thanks for the help

[tekno62]

I would like to thanks everyone that put some input on this tread about replacing your heater core with AC - Link

What timcos posted about half way down should be sticked and in the FAQ if its not already there.

Great info from Timcos


I will add my steps here for anyone who wants them. These are for AC cabs

1. Disconnect Battery
2. Disconnect Heater Hoses
3. Drop Passenger Inner Fender
a. 7 bolts around wheel well circumference (from wheel well side)
i. You will mosy likely break a few J-Nuts...depending on how frozen
they are. (If you do...grind the head of the bolt off and buy some
more)
b. One big bolt on the rear inward section of the inner fender (from
underneath)
c. Three bolts on the upper inside and upper forward on the inner fender
(connects to fender(2) and batter tray(1))
d. Three bolts on the very forward section of the inner fender
e. Shake it loose and get it out of the way.
4. Remove the 4 nuts holding the heater core housing from the outside
a. one nut is right below the heather hose connections
b. one nut is on the driver side of the a/c housing ...essentially on the
opposite side of the condenser housing toward the driver
c. The last two are on the bottom of the a/c condenser housing on either
side of the housing
5. Go inside the cab
a. Remove the glove box door and the glovebox (makes it easier)
b. Move out of the way the ventilation system (green directional air box,
s-tube and the floor/defroster control box) (I took mine apart as I was
replacing anything that was broke...and wanted to clean the whole
thing up) - pretty easy...some obvious plugs and screws
c. Disconnect that resistor plug and take it out of the housing with its
grommet (I WD-40'd mine and it was very easy to slip back in)
d. Remove bolts at 11 and 5 o'clock (looking forward)
e. Pull the heater core housing gently away from the firewall. You do not want to break one of the bolts off that are molded into the heater core housing...that would suck and mean more work...you are also pulling the hose connections to the heater core through the firewall
f. Remove the heater core bracket(two brackets) screws (two screws per bracket) and the connection clamp (for the two heather hose connections
Reassemble in reverse order.