was looking at my xm tonight noticed idler wheels in middle of the sled not inline. There are two mounting holes on the rails on the left side the wheel is in front hole and on right side the wheel is in the back hole or vise versa cant remember just wondering as I didn't do any changes to the skid is this normal or something that was installed wrong from factory? just wondering if someone could look at their machine and see if this is the case on it or not?