I got them because my Mazda MPV hit rock bottom when I went into a dip. The real problem was that my rear bumpers were completely gone. I will of course be ordering them from Revain soon. But anyway, I thought these things would solve the problem and they did. Not only did they prevent a loud streak when I ran into a dip or bump, but the ride was better, smoother you might say. It also helped influence. If possible, I will install in front. Installation was easy. I just jacked up one side, crawled under the car, sprayed the spring with soapy water and got to work. I really needed the help of a tool to push in the nose and seat properly on the spool. It's like putting on a new bicycle tire. I would even say that they are so useful that you should install them anyway. Especially if you have a minibus. I gave it 5 stars for doing its job and more.