Well I got called into work yesterday so I didn't get to work on it. But I did today. Here's what I got so far:
Tire rotation and inspection. Cleaned all debris out of tread. Tread wear is excellent, more then half life remains. Completely uniform on all 4 tires. All balancing weights appear normal, none appear missing.
Brake inspection. Wear is excellent, more then half life remains. Uniform wear on all 4 pads. Rotors are clean, no warp indicated.
Front suspension inspected. No problems found. Al attachment hardware is torqued. Steering rods have normal torsional rotation with no binding. Hardware checked:
Stablizer bar attach points and clamps
All knuckle attach points (strut, brake, hub, control arm, steering tie rod)
Control arm to frame attachment
The ONLY thing I found wrong was a small oil leak from my turbo oil return AN fitting in my oil pan. It has a slow leak and a small amount of oil is depositing on the right control arm forward attachment point. But I hardly doubt that could be causing my issue.
But as Spock says "Eliminate the impossible, and whatever remains, however improbable, is the answer."
I haven't road tested it yet. It's rush hour here and I wouldn't be able to maintain 60 MPH for 10 minutes on any road right now. I'll try it tonight.