I installed these shocks on my 2012 Toyota Sienna XLE. There was quite a bit of beating and beating in the van that became unbearable. We even considered the possibility of a complete replacement of the car. I'm glad we didn't because those shocks dramatically improved the handling and ride quality. Actually. shocked. Installation was NBD, took about 2 hours from start to finish on my street. If you've never worked with jacks and a good jack, get it done by a professional. This is kind of a university job as after jacking up the car you have to use the jack to raise each rear axle/wheel assembly individually. Can be intimidating if you've never done it before. The original shocks didn't even have the correct model number. SMX. Whoever last worked on this van (we bought it used - it has 130,000 miles now) used the wrong part number so these shocks never worked properly. These new ones have completely eliminated any road rumble or annoying bumps.