I just wanted to let everyone know about my recent search for the best towing/Hot weather ultimate radiator. I found the standard aluminum core with plastic tank radiators that come in the 2nd Gen Dodge cummins trucks, but thought how could this thin radiator keep my truck cool in the hot weather running air conditioning and endless traffic jams around the Chicago area. I found only one source for real radiators with four core and all metal meant as a direct bolt in replacement for the Dodge radiator. BTR Radiator at 401 Dixie Red Ave Jefferson GA 30549 PH 678-382-2101. I purchased the radiator through Ebay I don't know if they sell direct or not. The first radiator showed up at my door with damage from rough handling at Fed Ex, but with a phone call to JD at BTR he immediately sent out a new one even before Fed Ex processed the damage claim. In this age of it's somebody Else's problem I was impressed with his professionalism and only hope all suppliers would follow his example. I would recommend this radiator and this company to anyone interested in truly heavy duty cooling for their Dodge or probably any Diesel.