Definitely one of those times when there could be several different root causes and I hate just throwing things at it and hoping for the best. The radiator had issues so I'm okay with changing that. The thermostat looked like it was 50 years old so that's checked off. Once I get it on the road again I'll reassess. For all I know it could be a faulty temp gauge. LOLYeah, I wasn't saying you don't need the pusher (with A/C I think you do) just making sure that there is not another problem somewhere that is causing the car to run hot.