On the passenger side, I've broken my 2nd set of spring seats in less than 70K miles, with this last one lasting less than 10k miles! I have had Bilsteins on them since 2000, and the ride is rough, but would a rough ride really cause a spring seat to die that fast? My car has had its fair share of problems on the front passenger side ... replaced a wheel hub, cv boot replaced, sway bar end link replacement soon (suggested by a mechanic). Could there be some other underlying issue that is causing my problems, ie like the Bilsteins themselves or the installation? How would I know? Before I go and replace the spring seats, I'm wondering if I'd be better off just going with the OEM Boge. I would like a softer ride. Last question ... do you think I could sell the Bilsteins? They do have a lifetime warranty ... Thanks, Mike