This is very true... After converting my FS2 to run gear diffs (Durango items) although the car was very good I just felt like it was pulling the car to pieces.. The standard slipper in the car could manage the brutality if set as separates etc it's just the rest of the car couldn't...The amount of slop/wear in such a short space of time was unreal..
The new 6 if going to be capable of running gear diffs it needs to be built like a tank!
Not a good day in terms of publicity for a new car...