Actually, it turned out to be a leaky heater hose going to the firewall, not the hose going to the oil cooler so I won't need to tear it all the way down but I still might have to pull just the blower just to get the hose clamp off at the firewall. Not sure about a stock manifold.
It turns out that the driver's side heater hose rubs on the edge of the stamped gear cover at the back of the blower. It finally rubbed all the way through and sprung a leak. I'll post pics in my Edelbrock blower thread.
Some notes for anyone else that needs to replace heater hoses on a 3.6....
Mopar only sells the heater hoses as a pair but Gates offers them independently.
GATES 12096 (passenger side heater hose)
GATES 12097 (passenger side heater hose) <- this is the one that touches the Edelbrock blower.
Mopar (both heater hoses): 55111446AC