Hello the radiator on my 84 ram 50 TBD keeps sending fluid to the over-flow and my temp guage doesn't work right. Im wondering if it is actualIy overheating or not. I replaced the thermostat, waterpump, and radiator cap but it is still doing it. I measured the motor with a temp gun after a 10 mile trip and it says it was running at 220 measured at the side of the block. Is this normal? What could be wrong? Oil is good as well as antifreeze.