2004 MCS, 160K miles. Original clutch and rear main seal. I'm getting a leak even while the car is stationary, level, proper level of oil, and not running. Drops come from the vicinity of where the oil pan meets the bell-housing. Definitely not coming from anything above the oil pan gasket. Thoughts?

 

I would drive it up on some ramps, clean the engine and let it dry. After that, run it and lay under the car and watch to see where it starts dripping from. Look at the pan gasket, drain plug, oil filter adapter housing, front main, rear main, etc. However, given the age, I would guess that the rear main has dried out or worn out (or both) and is in need of replacement.