Coil springs/retainers are suspect on 'tours, I found. Might want to check that out, or at least keep that in mind as a potential failure in waiting. Good luck there, and pls. do be careful driving 'til you figure it out. I posted my horror story (coil broke loose, went into front tire) a while back, found it's a TSB -and an extended coverage thing- for non-SVT's only. Let me know if it is the coil, I'm making a list...