I've come across a problem that I'm stumped with. My driveshaft shoud be in a clean plane with the differential yoke but it's not. The difference is 6 degrees which is why I have a vibration. I recently raised both the back and front 2" being that the truck was sitting to low. In doing this I thought that raising both front and back the same amount would not knock the driveshaft aligment off, but it did. If I lower the front again 2" I would have one hell of a rake but again the truck would be sitting to low(would hit potholes with crossmember). Any suggestions?