Both struts appeared good on smooth road, but are essentially rock solid on potholes or bumps. In 60 years of driving I have never had a failed shock so never considered it and bought this 10 year old car. Scant and incomplete data related to all brands on the internet blames the routine lifting of the car for tire rotation and breaking of internal parts that block the oil flow in the shock. This seems reasonable since many events occur in pairs (in front; I don't know about rear). I expect that a single failure could cause obvious safety problems. Many miles of good operation are cut off for owners by this diabolical design error in addition to the added repair expense of approximately $1000. (+ and -) I believe that the dealer (brand not important) did not recognize the problem, indicating that more exposure and training is required. Parts people and mechanics seem to be aware but there is no concerted effort to solve it. (a conflict of interest?)

- Orlando, FL, USA