Thanks for your input.

Dutch, I do have an aux fan behind front grill, and no it does not come on when engine gets past 12 o'clock in temp gauge (as happened today, with an outside air temp of approx 86 degrees, temp gauge hit just past 3/4 mark). When the a/c is shut off, or the outside air temp is not that hot, the temp gauge stays at or below 12 o'clock.

G-Man, I do have a BEHR a/c unit, but don't know if aftermarket radiator is BEHR.

What would you two recommend- 1) seeking out a factory designed radiator (if so, any info on sources and part numbers); 2) ask mechanic to repair/hookup aux fan; or 3) both?

I would like to do whatever is necessary to maintain this vehicle in great condition. Unfortunately, cost must be considered.

Again, thanks a great deal for your advice.