Hey there I have a 2004 tj and I've been working on replacing the thermostat all weekend. I have properly cleaned the surface and I got a new thermostat housing as well. The gasket has been replaced 3 times and it has leaked every time. It has also been torqued to spec every time. I have been using a gasket maker and I'm starting to think that is the problem. Is a gasket maker unnecessary on the thermostat housing? Thanks for your help!