Hello Chas. Stabilizer upgrade, front or rear, would not effect the geometry of your suspension which requires realignment. If you are working to reduce the tail wag, a rear track bar is another improvement available. Our homes on wheels tip away at the top with crosswind, either from Mother Nature or passing trucks and the beefier sway bar helps that. They also move laterally on the long leaf springs and the rear track bar stops that.
2017 SunSeeker 3010DS