Not sure which 2004 Toyota 4Runner Suspension Systems are right for you? We have over 1691 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Dave M from Butler, PA said, "product arrived quickly, all parts and easy to understand directions made installation a breaze. aired them up as per instructions and after one week i havent had any air loss at all not even a pound. going to the beach this weekend so i'll have the 4runner loaded up and we'll see how that works out.very happy with the air lift suspension leveler bags now."