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					Originally Posted by theiceman  your first noise was the pump bearing.. your pump is toast replace it. This would be a good time to replace the stat with the LN engineering one that opens sooner and allows the engine to run cooler. . | 
	
 
Prove it. 
"... allows the engine to run cooler... for a few minutes until operating temprature is reached. 
Or... does it open earlier to allow cooling, sooner, on the rearmost cylinders? (Hint: Yes).
Math and science, only. 
Lets get it on. 
Installed low temp on my 98... in 2017... engine reaches same operating temperature... wait for it... same as OEM part.  Yes, I have a Durametric... and an S oil cooler.
I'm comforted knowing the thermostat opens earlier... and takes just a few more minutes to reach "operating temperature".
Now.. if there is an aftermarket part that will reduce the [
B]operating temperature[/B]... share. Emphasis on "operating temperature". 
Please, no democrat math or science.