I am trying to tone down the vibration in my driveline. Its not super bad under normal acceleration but when I get on it hard it feels like its gonna tear my car apart. I am looking to do some pinion angle measuring and adjusting. Its my understanding that the axel rotates when under acceleration and this is really accented while under hard acceleration. I understand how to measure the angle. What I can figure out or seem to find online is the exact way to go about adjusting it. So how do you actually adjust the pinion angle? I have seen something about shims. As always thanks ahead of time for the great info I am sure you guys will chime in with.