[jers36]

I guess the way I said that was confusing, you are right, 175 is not hot but normal high on the temperature gage I assumed is about 180 degrees and as I was driving home it was fluctuating between that high mark to pegging out at the top of the gage and back down depending on stop and go traffic. When I was going into town the temp gage was only going halfway up to what I am calling the 180 mark. That is why I started looking for a leak and found them on the radiator core. I hadn't seen a leak there before and out of curiosity I just grabbed the heat gun to verify the temp was in range at 175. I have a new sending unit in the truck.