I can tell you what it took with our 2016 Axis. Alignment/Weighing each corner (for proper tire inflation numbers), SumoSprings in the front, Saf-T-Plus and Koni shocks on all four corners. Made a huge difference. As far as the sewer hook up goes, this rig is one of the least handy for we older folks because it is so low to the ground and the need to pivot the fitting downward. Not much can be done about this particular issue. Drive carefully and enjoy.