I thought a possible loose subframe. Don did too. Because I reefed on my steering rack, tie-rods, and balljoints when I replaced my swaybar centerlink bushings recently. No movement.
I didn't dig any further at the time (a week ago) because I hadn't noticed yet that I could get it straight with a hard right turn (I'm a NASCAR fan, I turn left harder than right).
Found it today after work. I noticed a polished up bit of my steering rack on the passenger side just above the diff/dogbone mount:
But this rubber-lined clamp was tight.
Off to the driver'* side where I found the loose bolts. How loose?
Off to the car again. Turning the wheel full right on the ramps, then re-tightening everything. Including the subframe. Why?
Goes to show you that even the best tranny builder around still hires monkeys for the manual labor. Keep in mind this didn't come on slowly. It wrenched out due to a very hard launch at woodburn last year, and steadily got worse.