The first thing that most people look for is warped rotors... A common issue that seems to happen around 80k is that the control arms begin to wear out. I also noticed popping and cracking during slow manuvers ie; moving over speed bumps and slow turns into my driveway. What's worse is everything became exaggerated when I went to 20" wheels. I replaced my control arms at 85k and this eliminated all problems. Now it drives like new again.

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