86 low speed blower inop. I finally found a place with a replacement resistor assembly. It is part of a complete harness connecting the switch to the motor. The connector on the motor can only fit one way. It never occurred to me to check out the new harness.
I get it all back together and the motor now has three speeds but only puts out enough air to barely feel it on high. Long story shortened is that the motor was running backwards. I had to remove the wires from the plastic plug on the blower and reverse them.
I don't know if the harness had some positive ground application or I was sabotaged by someone that was trying to get even for the day it was 5000C in Hiroshima.