[polar951]

Does it happen when your car is cruising on the freeway and you clutch in and it dissapears? I had this same exact problem when I installed all of the parts you did minus the ES bushings. My car would always make a "wobbling/clicking" sound even on the slightest acceleration and when I would clutch in while rolling it would dissapear. Apparently it has to do with the solid diff ear bushings and solid PBM bushings transferring the noise of the differential. Couldn't find any rubbing literally anywhere like you described so I just ignored it and has been fine ever since. Has been for a couple months.

Edit: had even called up PBM and spoke with a mechanic to help confirm that it would most likely be the differential