I need to get the heater box back together and back on the truck this week. Several members suggested I used "gum cord" or "strip caulk" but the HVAC store here does not know what those terms are.
Would I simply ask for a gasket or sealant in a tube at the auto parts store?
Who has reassembled their outer (under hood) non AC box? What were your exact steps to do it?
*Sorry if I come off as a moron, it's my natural state sometimes.