I have a 700r4 that was recently rebuilt, and I put a cooler on it. The fluid gets cooled by the radiator first then by the cooler. I live in colorado where it can get to -10 degrees sometimes and i was wondering if you can over cool a transmission. I just spent 2000 on this tranie and I don't want it to blow up again. Is it harmfull to have the fluid going back into the transmission to cold? If so how cold is to cold.