I have had the same problem with mine, never resolved until I retro-fitted the Disco to standard coils. The lifts are a hell on road, because the castor problem they cause. The steering is wanderer, an emergency brakage on fast road is dangerous etc.. No more lifts for me. If I ever need a permormant and real 4x4 I will sacrifice the comfort and stability of the Disco (in his standard parameters) and go to a Defender.