George Jets said

I see you have the aluminum passenger side exit water pump, and yet your top hose coming from the thermostat is also on the passenger side of your Cross Flow radiator.

Like it is circulating the coolant through the passenger side radiator tank and back into the engine, without it circulating through the main part of the radiator.

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Oldmanmopar said

Here is what I see wrong. The upper hose is on the same side as the lower hose on a cross feed radiator. Someone move one of the hose nipples on the radiator. That will make it run very hot.

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