I have a 1996 F150 5.0L 4X4 and I'm in the middle of replacing the core support I would like to change the thermostat cause of some over heating issues. I have no owners manual or a chilton book. So while I have the front end open up where and and how do I change the thermostat. Pictures would be greatly appreciated.

Many Thanks,
Eric

 

It is under the housing that joins the upper radiator hose to the engine.