good product . ez install . not mentioned in instructions but get or borrow a set of spring compressors (autozone lends em for free) . i set mine up for individual fill. 10 lb unloaded up to 50lbs with load. definitely want to bring em down to 10lbs unloaded or its a real bouncing ride with no additional load. loaded felt good . sway bars next! http://i543.photobucket.com/albums/g...g?t=1375737116