Slant Six overheat at cruise speed, especially going uphill

plugged cooling for sure. T stat, gummed up Radiator, Something like that. There is no reason for this if you cooling system is working properly. Also make sure you have a good mix of coolant to water.

They dont have parts store here that sells Mopar Parts... all need to order from good ol' Ebay...

Would it be ok to take out the thermostat for now, and run it like that until new thermostat arrive in a couple of weeks? Ambient temp here is constantly above 90F so even without a thermostat, engine temp should come up to operating temp very fast.

I know this is bad practice, but ... better than a overheated engine I suppose?

Thanks again.

Syed