As all forum members said. This and the Hellwig stabilizer have greatly improved the handling of our Class C motorhome which is mounted on a 2013 MB Sprinter 3500 chassis. Even my wife, who is rather skeptical, noticed the difference immediately. It's much more comfortable for both of us, especially driving on the freeway, battling the Oklahoma winds and overtaking trailers. Easy installation. So far only at the rear, without front and replacement shock absorbers.