I have a 2000 explorer 4x4 4.0 V6 with a busted lower thermostat housing and I just found this thread. Biggest problem was finding part and because mine has the screw in sensors and the screw studs are different.
MUCH help... thank you. I have most of my answers. The only thing I was worried about ... which is now hindsight... was whether to take off manifold. But now that I have, is it okay to just rebolt manifold backon (without a new gasket) after replacing the thermostat housing? I know there is a sequence.
Is there anything anyone has encountered that they can add to this.