I purchased a used set of Granatelli non adjustable LCA's and a used Granatelli adjustable PHB this winter. I recently put them on my car and now on Occasion the cars rear feels mushy. THis is noticable sometimes on acceleration, but mostly on hard cornering or when the car hits a dip in the road. I should mention that the car was lowered by the previous owner and I do not have the LCA relocation brackets. All the bolts and the jam nuts on these components appear to be tight. I have not set up the PHB yet (Need to get a bigger wrench). Is this a question of alignment/geometry(being more noticable with these new components) or are the bushiings in these used components NG.?