Correction, I now believe that the transmission cooler is the black cylinder between the water intake and the water pump. On this cylinder are two brass elbow connectors with hoses to the transmission. I mistook these hoses as carrying water. I now believe they are carrying oil to be cooled. I hope I am right and if this is the case, I don't have a freezing issue because there is no water in the hoses on either side of this cylinder.