We bought a second, cheap, and very wrecked Dodge Cummins truck from Copart for parts to fix up our 2002 Short Bed truck. We road trip the Dodge to Pasco, Washington to tow the parts truck home.
My guess is it’s getting hot cause all the fins on the a/c condenser and radiator are folded over! Get a radiator comb or replace the a/c condenser so air can flow thru!