I have a clunking noise in the back when I go over bumps and I was told by my mechanic I need to remove my muffler and fuel tank to replace the rear sway bar bushings on my 2006 Malibu Maxx. I looked up in the Hayne's manual and there is a note that for Maxx models that I do need to do this to replace the sway bar. However, does this also pertain if I want to just replace the bushings?. Is there not access to the bushing and clamp when I remove the tire?