I'm not completely sure I have the shudder. It is very slight from a start. It seems like it's only there until the engine hits about 800-900 RPM and then smooth as silk. It's not even there for half a second when a slowly accelerate from a start. I do notice a hard shift to second, though. Is that part of the problem as well? It's not like the whole rear end of my truck is shuddering, but if I look for it, it is there. Does this sound like the clutch pack problem. I do have the 3.73 Limited Slip in mine.

It's not noticeable on turns at all. Only when accelerating straight, and then, it's not always there.

This is my first truck, so I'm not sure if I am imagining things.