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rear end clunk... gmpp kit?
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k6ng6r00
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PostPosted: Fri Feb 17, 2012 5:33 pm    Post subject:  rear end clunk... gmpp kit? Reply with quote

i cant get my rear end to stop clunking... now that i have new bearing and ive eliminated every other fleeting rattle and squeek, im trying to tackle this last one. I believe its from something just being loose, which could be anything to do with the trailing arms, rear sway, end links, or struts. (all new parts in the last ~2 years)
so ive been poking around, heres a pic of the trailing arm:

theres a very small gap there right in the middle of the pic... but i cant get the bolt any tighter... is that how its supposed to look?

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outonthetiles
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PostPosted: Fri Feb 17, 2012 7:59 pm    Post subject:   Reply with quote

That doesn't look bad, have you checked your strut mounts?

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k6ng6r00
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PostPosted: Fri Feb 17, 2012 8:30 pm    Post subject:   Reply with quote

outonthetiles wrote:
That doesn't look bad, have you checked your strut mounts?

no, how do i go about that?

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outonthetiles
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PostPosted: Fri Feb 17, 2012 9:47 pm    Post subject:   Reply with quote

Maybe someone can chime in but I would take peel the carpet back and pull the rubber boots off. Then watch them while you have someone rock the car side to side and see if there is any excessive movement. When they went in my sister's sebring you could see the shaft of the strut move freely up and down relative to the strut tower.

On another note, you said the sway bar end links were new? If not I'd yank on them and see if there is any play.

Edit: The more common things to go bad are strut mounts, sway bar end links, and sway bar bushings in the back. I would not move on to trailing arms and lateral arms before checking those things first.

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00impala123
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PostPosted: Sat Feb 18, 2012 3:07 pm    Post subject:   Reply with quote

Doesn't look off to me. My brackets are halfway rusted through. I'm just waiting for the snow to be gone to get under there and put these new ones on

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IffyG
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PostPosted: Sat Feb 18, 2012 5:13 pm    Post subject:   Reply with quote

My guess is the top nuts on your struts backed off a bit and are allowing the strut to move around in the mount. Get in there with some wrenches and see if the nuts tightens, my guess is it will.

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smayman
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PostPosted: Sat Feb 18, 2012 6:41 pm    Post subject:   Reply with quote

Strut mounts for sure. I'm going through the same thing right now and that is definately the cause.
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k6ng6r00
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PostPosted: Sat Feb 18, 2012 9:25 pm    Post subject:   Reply with quote

IffyG wrote:
My guess is the top nuts on your struts backed off a bit and are allowing the strut to move around in the mount. Get in there with some wrenches and see if the nuts tightens, my guess is it will.

Are you saying the middle nut, or the 3 that go into the tower? becuse the 3 that go into the tower are tight as balls.
PS how does one adjust the agx struts in the rear?? i dont recall seeing any dials at the top like the front ones

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IffyG
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PostPosted: Sat Feb 18, 2012 9:47 pm    Post subject:   Reply with quote

I'm talking about the top nut that secures the strut to the mount. The big sucker that requres you hold onto the strut rod while you tighten the top nut.

To adust the rear that are little square knobs that attach to the top of the strut.

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k6ng6r00
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PostPosted: Sat Feb 18, 2012 9:53 pm    Post subject:   Reply with quote

IffyG wrote:
I'm talking about the top nut that secures the strut to the mount. The big sucker that requres you hold onto the strut rod while you tighten the top nut.

To adust the rear that are little square knobs that attach to the top of the strut.

ill have to climb in there tomorrow after i put on my exhaust tighten the s**t out of everything. any idea what size socket

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IffyG
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PostPosted: Sat Feb 18, 2012 9:55 pm    Post subject:   Reply with quote

I don't remember, but I think I grabbed onto the top part of the strut rod with a 10mm wrench and used an 18 mm offset (or something similar) on the top nut.

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k6ng6r00
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PostPosted: Sat Feb 18, 2012 11:37 pm    Post subject:   Reply with quote

Why do you have to hold 2 things? The rear struts don't turn do they...? Confused2

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PostPosted: Sat Feb 18, 2012 11:50 pm    Post subject:  rear clunk. Reply with quote

Yes, the center of the strut will turn. Look in thru fender the chrome thing u see inside of the spring is that center strut. It's not like a shock per say. As IffyG said. Hold main center strut with 10mm wrench or small vise grips, that stops it from turning while u tighten down on the bigger center nut. Very top part of strut is threaded. Cool

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billy101
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PostPosted: Sun Feb 19, 2012 12:00 am    Post subject:   Reply with quote

I think this is similar to my rear end clunk I hear sometimes. I'm on factory struts and springs at 183k miles, could my bolt under the rubber boot got loose?

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k6ng6r00
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PostPosted: Sun Feb 19, 2012 12:24 am    Post subject:  Re: rear clunk. Reply with quote

topgun wrote:
Yes, the center of the strut will turn. Look in thru fender the chrome thing u see inside of the spring is that center strut. It's not like a shock per say. As IffyG said. Hold main center strut with 10mm wrench or small vise grips, that stops it from turning while u tighten down on the bigger center nut. Very top part of strut is threaded. Cool

can i tighten it with a regular wrench? i hope this works, could the fronts be loose too? ill check them

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