The 4 Seater 4 leaf springs I bought on my 2014 4/4 were sagged even after three years. The car was visually too low on the rear axle, it did not look nice and propper. Since leaf springs, even if they sag, still retain their spring rate I did not change my leaf springs but had the lowering blocks removed (red circle). This has drastically improved the driving and control feel of the rear axle. Because now the axle is "in" the leaf spring and no longer under it. This eliminates the negative leverage effects caused by the lowering blocks when cornering. At the same time, the spring travel has increased significantly, I have since then never had the spring at the stop. At the same time I have removed one of the two sandwiched rubber layers (blue circle) so that the car can still deflect well and freely. I have not noticed any further increase in the sagging of the spring/car height for three years now. Perhaps the sagging is reaching a point where it stops progressing. All in all, it was an inexpensive measure that had a very positive effect on the overall handling. However, I had to buy longer adjustable Rutherford AVO dampers because the old ones had become too short by this measure. My Avatar shows the ridehight after the measure.

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'14 4/4 graphite grey