FWIW...I had my perfectly fine and functioning OEM radiator recored to the three core after I removed it and saw Dodge used some three core end tanks with a two core core..who knows Dodge's rationale at the time. Regardless, my Tampa radiator shop said this is about the easiest thing to do from a shop perspective. All they did was measure the OEM core, got out one of those HUGE old parts catalogue with radiator core measurements and who makes it, and matched the size up, figured the cost, ordered the core, and done deal. Under $600 later I had a shiny new black three core OEM radiator pressure tested and guaranteed. That was four years ago or so, but there are shops capable of actual radiator work.