Forgive the cross-post, but I've been trying to reproduce my extremely intermittent, low speed, low acceleration, transmission shaking. I've only experienced this a handful of times, and it seems to occur under very specific conditions. If you're interested, I put the details in my most recent post to http://www.focusfanatics.com/forum/showthread.php?t=295215&page=11
- #126. I am going to make a habit of turning the traction control off, and wait for the exact conditions to present themselves.