The damper comes with a pair of rubber bushings and a pair of metal plates along with a bunch of blurry graphics and confusing installation instructions in various configurations. I emailed KYB, they replied immediately and with a clearer pattern and with some quick replies, they told me how to build a stack. Fitment to my 2008 Sienna Ltd 7 seater 4WD was very easy (reusing the original dust cover and inner bumper), I didn't even have to jack the car up. (I'm a little guy with an impact wrench :)) Test drive shows it's good. Now let's look at the strength!