Hello;
I’ve looked thru the posting & haven’t found an answer to my question so here goes:
On a 67, the wires from the loom for the heater blower motor (non-ac) are Brown & Yellow. The replacement motor I got ( the old one was fried) has Red & Black wires. Which one’s go where?
I’ve searched all over & haven’t been able to figure it out.
Thanks. 
I would guess the red on your new one is the hot so it would go to the yellow, and the black is the ground to brown. It’s a 12 volt motor, so if you don’t have it installed yet you could check in on a battery with jumper leads to verify rotation compared to how your fan is suppose to turn.
Actually, brown is power from the fuse box and yellow goes to the resistor panel on the heater box.
I believe he is talking about the colored wires coming out of the blower motor. Just pulled my used one off the shelf this afternoon cuz I wanted to see if you reverse connection to battery if it runs the opposite way. It has a yellow and brown wire on it. It runs the same direction no matter which you put wire you put to which batt terminal. In an AC car the harness brown don’t get used it gets taped off. There is a harness yellow goes to yellow on motor, and the brown goes to chassis ground. Least that’s the way my car is. Not saying the yellow don’t go through the resistor.
Read his post again: he says black and red from his motor and brown and yellow from the underdash and he does not have AC. His blower motor may be for AC: red would be power and black would be ground. The blower motor wiring is different than a non-AC unit.