Just an observation on my part here, I tried to use the afformentioned 160 degree 96 mustang t-stat. when comparing the original aka CORRECT stat to the mustang stat you will notice the the mustang stat is missing the lower portion wich fits into the bottom port in the thermostat housing, used to control the flow of coolant through the housing. I went ahead and installed the mustang one despite the visual differences. I then began to have overheating issues. Not boiling over overheating but it would run up towards the top of the guage at an idle, with the rpms up to 2000 or so it would come back down. But also going down the road it would definatly run cooler than normal. I recently switched back to the CORRECT stat and havent had a problem since. My conclusion is that the Correct stat is desinged for our cars and the one for the mustang is not.
