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I wanted to know how I can identify the differences between an ecomony/standard heater case, and a high output heater case?
I know the heater cores are different, and I'm considering changing to a high output case if I can pick one up.
mine's on the control head. and the engine side of the firewall is flat with no big plastic box sticking out, except for the backside of the blower motor.
The trim piece on the dash should have a stick on piece that says high out put heater or something like that anf it will say it on the heater box as well.