I have one of the last 4/4s. My rear driver side spring has sagged a little compared with the passenger side. Not much, not enough to justify a change that could in truth just sag again. I have decided just to keep an eye on it. I did spot contact marks with the rear inner wheel arch. Inspection shows the profile of the inner arch cutaway does not ideally match the location of the axle to prevent contact free travel on compression. I have remodelled the inner arches with a pad saw. I have also fitted Rogers’s bumps which seemed a logical thing to do as, although it is a long time since I last had one, cars with such springing arrangements usually have a rubber stop fitted to prevent a metal on metal collision on full upward travel if memory serves.
