I'm doing some work with my heater and have the heater box seal kit from Mustangs Unlimited. In their catalog entry for the kit it says:
"Rubber padding around heater core not included"
What is this rubber padding and exactly where does it go?
BTW, I got into this because I was looking for a rattle under my dash. While disassembling the heater box I found the rattle. It was an old wiper/washer bezel trapped on the top of the heater box! I was tempted to just put it all back together, sans the bezel, but decided to do the "right" thing!
I rebuilt my entire box with a kit from restore mustang and I believe the core pads to be 2 seals that are the shape of the core. The foam os about 3/8" wide and 'borders' the core. heater works great, now if I could just get the rest of her done! :-)
every man must have a toy
98 Dodge Ram (mobile tool box)
97 Grand Cherokee (family hauler)
66 Coupe 289/c-4 (The Other Woman)
Hey Rob, I just bought and installed the same kit you're talking about. The rubber padding is a rectangle piece the size of the heater core. My box still showed some evidence that such a thing did exist. My guess is yours is almost gone too. I just left it the way it was. The heater cores seemed to fit fine and the seal doesn;t really seal in the heat anyway in these almost nuclear ford heaters! I also had some trouble getting everything to fit with the new foam. It was tight.... However it now works great. No rattles or anything. I used headliner glue to stick the foam into place. Good Luck!
Ooops forgot to mention my car is non-ac... There isn't a rubber pad but it looks as if there should be a foam one. It's not very thick though and I don't think it would hurt if you didn't replace it. Don't think guys like Charles would inspect that area either [IMG]/forums/images/icons/smile.gif[/IMG]
I replaced my heater core a couple months ago. (New heater core for 68', no A/C from Murrays for $19.95). I saw some evidence of foam but no rubber padding that I can remember. Re-assembled with no rattles.