Looing at your picture, that is exactly what happend to mine. They would flex and then not spring back. Mine looked just like that. Put money on it that your springs are bad. Mine were. Rough country almost didn't warranty the springs because they are only rated for the 79-85 truck. Not the 4runner because of the extra weight. My good friend has a xj with a 4.5 inch rough country lift and one morning he went out to get in his jeep and the pass side rear spring was completely flat. Over night it sagged and went bad. They sent him another for free but it also happend to me. POS springs. I personally dont think there is any difference between superlift, rough country, sky jacker ect. They all look the same and probably are the same quality. CRAP!!!!!!