Detroit 60 thermostat housing

I had a problem with mine leaking after changing thermostats had to use a little silicone to get mine to seal its wired as I know for a fact the thermostats have their own gaskets I’ve changed one on fuel island b4 it was that easy I think my gaskets were hardened up because they had been in side box for a while I never worried about torque should though I’ve cracked a few on cars over the years anyway don’t suppose you needed to use any sealer on flet surfaces

 

That’s what I thought must be mine were about 7 yes old kept them after dealer overhauled my last truck and put new ones in along with a turbo and water pump that I didn’t need but they do that for warranty what a joke thanks