Thanks, ended up replacing radiator with an OEM 3.5, and seems to be f ine so far, but the summer hasn't kicked in. However, there are oil lines going into the radiator, I presume those are transmission oil lines, not engine oil?
What about the external oil cooler, where does that sit? Ive already an A/C condenser in front of the radiator. Where/what kind of external oil cooler do you have?