I have an 08 silverado with the 5.3, I just bought a 4000 pound trailer I now tow with this up some good hauls from phoenix to escape the heat, problem is it is so hot here in phoenix, and with the big hills i get the motor up around 235 or 240. I know thats not devistating, however I would like to keep it cooler. any idea where i can find a nice oversized radiator that would fit without modification? Also strongly considering a nice larger transmission cooler. Thanks for the tips and everything!