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Old 10-26-2014, 10:56 AM   #1
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squeaky rear end

I have a 2004 3.9 mustang that has a severe squeak coming from the rear end. It only squeaks when hitting bumps. I can get on both the front and rear bumper and bounce the car like crazy by jumping up and down and I can hear absolutely NO squeaking. I can turn the wheels back and forth like crazy and hear NO squeaking. If I am driving at any speed on a smooth road I hear NO squeaking. If I hit the smallest bump at any speed, while turning or not, it squeaks very loudly. I have searched many forums for help to diagnose this problem but I have not found anything that matches my issue exactly. I do have aftermarket rims, I don't know the size but they are pretty wide. Any ideas?
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Old 10-28-2014, 08:42 AM   #2
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It's gotta be a bushing or an isolator somewhere get underneath the car and physically inspect all your bushings and isolators. If still nothing I'd wait until it got worse then you might be able to diag it better. Might also be u-joints or pinion seal maybe?

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Old 11-01-2014, 08:01 AM   #3
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Do you live on a dirt road?

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