I dont really know how to describe this but ill do the best I can. Each one of my trucks in my sig do this. what they do is when you turn the wheel and back up or go forward , if you leave your foot on the brake but let off enough to let the truck pull itself the truck will shutter.if you give it gas and speed up it quits but real slow it does it bad. I dont really know how else to describe it without letting you dodge gurus to ride in them. but this site has been a lot of help and I thought this was the first place i'd check.

 

bump

 

jb,
I would look at my rear differental fluid. The Dana up to "03" had an additive for the "LS" that would reduce the shutter. I now have an "06" with the American axle and have not had that problem but am not sure of the type of limited slip unit they use. Someone here should know....

 

shouldnt mine have the same rear end as yours. thats almost what it feels like is the LS not slipping. My 4500 does it also.