I got the same problem, but only with my truck. (i just drive from budapest to debrecen without trailer)
When i see the patch is out, wow cool, i just leave diablo 3 (!!! - expansion is live

) and checked it!
Then i only drove this little distance because i feel so bad about the shaking.. and i think the steering is different and much harder to keep on the midle of the roadlane your truck
Sorry for misspelling and other things, i hope you understand my problem
