Winter swooped in two days ago and immediately I discovered a new noise under the car when I switched into 4WD. The exhaust is striking the balancing weight on the front propeller shaft. It wasn't like that back in the fall and I don't recall hitting anything that could of bent the exhaust. I checked the hangars and didn't find anything skewed. The manifold flange is also still solid and I can't wiggle the exhaust so I can't tell what has shifted for me lose that half inch of clearance.
The only other weird thing I found underneath was my driver's strut rod bushing had come apart. The shop must of backed the nut off when they were either replacing the control arms or doing the alignment and forgot about it, but I don't see how a completely loose strut rod would cause anything to sag and flex the exhaust out of position.