Jerking when in 4WAuto

[Sebastien]

When accelerating in 4WAuto is selected the car will jerk on dry slightly wet sealed roads
I have the torsen front diff and it only started doing it after 25000 miles
It doesn’t do it in 4H or 4L .Any ideas would be much appreciated

 

[Retired in TN]

You should be able to run in 4A on any road surface. This is highly unusual.