The thermostat is located on the end of the cylinder block just above the transmission bellhousing. It is hidden be the exhaust cross over pipe and air cleaner assembly.
The directions i provided you are to replace the thermostat. You need to remove the air cleaner assembly, the exhaust cross-over pipe, and the thermostat housing to replace the thermostat.
that is why I gave you the those directions. Labor time is 1.8hrs to replace JUST the thermostat in your engine, the reason is because you HAVE to REMOVE the parts I have mentioned.