I have a brutal squeak from my rear passenger side whenever I hit a bump. I took the wheel off and spayed every bushing in white lithium grease but the noise is still there. After some poking around I found that if I put my hand on the rear sway bar I can feel the vibration and squeak from the noise. I took the sway bar off the frame behind the lower control arms and packed the bushings full of white lithium grease and reassembled. The noise is still there! I covered the ends of the sway bar with a rage and pored motor oil on them to sit over night…..still there. Any ideas what I’m missing?