Ive an AKS3000 coupling stabiliser and all was well until I changed the towsure tow ball to the detachable type - you unbolt the old unit and fit a new receiver for the swan neck coupling. Now it creaks and groans when going round corners. The Cvan handbook says it could be due to dirt/contamination of the stabiliser pads or the that the detachable bar design is not secure enough (I'm going to send a note to the Towsure helpline). At the same time as fitting the new ball, I gave the pads a squirt with a de-greaser liquid are they now too dry ??