Does it matter what way heater hoses hook up to heater core 87 dodge ram truck?

Yes, it does matter how the heater hoses are connected to the heater core in an '87 Dodge Ram truck. Typically, one hose is the inlet and the other is the outlet, and connecting them incorrectly can lead to poor heating performance or potential damage to the heating system. It's essential to ensure that the hoses are hooked up according to the flow direction specified by the manufacturer for optimal operation.