I have an "02" model with 237K miles with the same noise when I go over slight bumps, and particularly when the brakes are being applied. I can see cracks in the rear bushings, so I assume this is the problem. Where is the best place to get these bushings, and how difficult are they to change? I have read in other posts that there is a sleeve inside this bushing that must be sawed off to remove??? Any help will be greatly appreciated!