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Old 07-26-2012, 05:20 AM   #1
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sway bar bushings

what kind of life does everyone find in their sway bar bushings? I have 70K on my c 4 chassis and have not pulled the bottom plastic to look at mine, but when hitting bumps or washboard surfaces I can hear a little sound like the sway bar contacting the frame. I do drive it hard and I see no change in handling.

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Old 07-26-2012, 05:58 AM   #2
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The knocking sound could be a lot of things but sway bushings are a good place to start. Cheap and easy. After 10 yrs they are pretty far gone on most cars.
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Old 07-26-2012, 08:32 AM   #3
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Agree. Last month when I replaced my original 1999 suspension (110K miles) with the PSS9 kit and 996 sway bars, I found that almost all of the rubber components of the original suspension were pretty well gone.
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Old 08-01-2012, 11:18 AM   #4
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So in addtion to the sway bar bushings what other easy to replace rubber suspension parts should I consider doing? Thanks!
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Old 08-01-2012, 11:43 AM   #5
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The factory sway bar drop links can become loose and sloppy over time and exposure to the elements. I installed the excellent Tarett Engineering adjustable sway bar drop links when I switched out my factory 'S' suspension components for the M030 suspension setup.
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Old 08-01-2012, 12:14 PM   #6
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I had a sound like you are describing and it was part of the muffler bracket broken. I pulled my sway bar bushings off for my IMS project and I am thinking of changing them out with poly proflex ones but looking at them after 107K I wouldn't say they are warn in a way that would make any noise.
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Old 08-02-2012, 11:55 AM   #7
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The upper shock mounts (mostly rubber) can also deteriorate but they have to be really gone to knock.

Once you get started, its easy to replace everything:

When I installed the new suspension, I used new upper shock mounts (front and rear), new sway bars/bushings (front and rear), new front lower control arms/bushings (adjustable), new rear toe arms/bushings (also adjustable), and new front and rear end links (adjustable tarrett).

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