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Old 10-19-2012, 08:27 PM   #1
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Slammed on coils , clunk in front end.

fender heights are 23 1/4 inches , drivers side clunks over small bumps.

i suspected the sway bar endlinks. so i replaced it with a brand new one.

now the funny thing here is , i took the old one off the drivers side and drove to autozone , NO CLUNK , same exact roads where it would clunk. put the new endlink on and it clunks again. wtf ?


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Old 10-19-2012, 10:06 PM   #2
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Bad sway bar bushings
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Old 10-19-2012, 10:35 PM   #3
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Bushings do not cause clunking...

If your slammed, you need adjustable end links in the front or else your going to keep clunking because your geometry is all up.

Or, check your upper strut mounts. They seem to go bad on lowered cars. If you reused your old ones when swapping them out that may be your problem.
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Old 10-19-2012, 10:36 PM   #4
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Old 10-19-2012, 11:20 PM   #5
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Quote:
Originally Posted by 1hotfocus View Post
Bushings do not cause clunking...

If your slammed, you need adjustable end links in the front or else your going to keep clunking because your geometry is all up.

Or, check your upper strut mounts. They seem to go bad on lowered cars. If you reused your old ones when swapping them out that may be your problem.
upper mounts are brand new , its gutta be something to do with the endlink. since it didnt clunk when it was removed.
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Old 10-19-2012, 11:39 PM   #6
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upper mounts are brand new , its gutta be something to do with the endlink. since it didnt clunk when it was removed.
Right, makes sense. Try out adjustable endlinks. As soon as the cars lowered from the jack regular endlinks have a bunch of stress put on to them and they wear out quick. I'm lowered about 2.5"-3" in the front and when I replaced my endlinks with moog greasable enxlinks they lasted 3 days before clunking again. Its annoying as hell and massive adjustable end links will be bought soon.

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Old 10-19-2012, 11:53 PM   #7
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Its the driver side endlink threading it hits against car. Well on my car thats what happend. You just have to buy adjustable endlinks or just deal with the noise.
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Old 10-20-2012, 12:38 AM   #8
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If the endlink isn't physically hitting something, I'll also go with bushings.


I also don't believe in this 'adjustable endlink' theory.
It is not the position of the bar that determines anything stiffness or geometry related. It is the bar diameter, mount stiffness and suspension compression that determine those things.

All adjustable endlinks do is alter the min/max travel points of the bar. They can be used to limit bar stiffness. For example, a shorter endlink will soften the car up while a longer link will stiffen the car up. This has to do with how far the body rolls before the bar comes into use. This is called preload, for lack of a better term.
Basically what it is is the point in the compression of the suspension that the bar comes online.

Really wish I had some visual way to explain this better.



Top bar is the front one.


A swaybar is a torsional spring. That is, a twisting force.
The bar is free to rotate in the bushings further than suspension travel allows. Or, the bar is not resting or inhibited from rotating in any way.
That now means the 'effective stiffness' or the bar will be determine by Geometry, The Lever Principal.




The point that's circled is what we're concerned with. For a neutral car it should be at an angle of 90 to flat level ground. Above or below that degree will alter the dynamics. A higher degree, moving the bar up, will add preload.

My crappy paint skills,




Long story short, you don't need adjustable endlinks.
My car is just as low as yours. My bar sits as it should for a neutral bar.

Look at the bushings.
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Old 10-20-2012, 12:40 AM   #9
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I need to flip-flop long and short links and can't edit right now.

A short link increases stiffness while a longer reduces stiffness.


proofread fail.
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Old 10-20-2012, 01:06 AM   #10
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Quote:
Originally Posted by Revhard808 View Post
Its the driver side endlink threading it hits against car. Well on my car thats what happend. You just have to buy adjustable endlinks or just deal with the noise.
thats what i was thinking. but why would it hit on one side only.
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