 OK, I feel your pain. The problem with the 06-07 V6 Eddie Bauer edition is the lower brackets that the radiator sits in. They are 1/4 "to far forward, this puts the radiator in a bind. After thermal expansion and contraction thethe welds in the core give up. This causes a ever so slight leak in the core. Hard to find at first , but eventually becomes much larger. You lose enough coolant to cause a over heating problem which is hard to detect because the coolant level is dropping ever so slightly. The temperature of the engine is rising at the same rate, along with the transmission, remember the trans is cooled through the same radiator. hot motor, hot trans lube breaks down. 