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Clunk from top hat after installing lowering springs

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treyk

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Did you slide the silcener sleeve up and lube the contact areas?
I lubed all contact points with silicone grease.
Do the pro kit silencers move up and down? if they do then it is possible the spring compressor could have slid it down a bit.
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Victorofhavoc

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I lubed all contact points with silicone grease.
Do the pro kit silencers move up and down? if they do then it is possible the spring compressor could have slid it down a bit.
The silencers can move. You want them pinched up in the contact areas as much as possible. If they're not long enough, you may need a longer set. They work like the Chinese finger traps. When idle or pulled they're tight, but squeeze them and they make room to slide up.
 
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treyk

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Update: Found out that when the car was sitting and had the wheel at full lock so I can touch the spring under load it would make the noise and bind by me just wiggling it back and forth. So I assumed it was a problem with the spring itself just binding. Eibach sent me a new spring since I tried everything and the noise wouldn't go away. Installed the new spring and the noise is less frequent but still happens. At this point I don't care anymore since our other car makes way worse noises and has been completely fine for 20 years. Just annoying on a new car haha.
 

Victorofhavoc

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Gordan
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Update: Found out that when the car was sitting and had the wheel at full lock so I can touch the spring under load it would make the noise and bind by me just wiggling it back and forth. So I assumed it was a problem with the spring itself just binding. Eibach sent me a new spring since I tried everything and the noise wouldn't go away. Installed the new spring and the noise is less frequent but still happens. At this point I don't care anymore since our other car makes way worse noises and has been completely fine for 20 years. Just annoying on a new car haha.
It's the nature of progressive (or dual rate single piece) springs. The silencer is crucial to keep the binding noise down. I would just look out for rust from the contact areas that wear away.

You could always try a different sleeve type to see if it helps, but sucks to disassemble just to try.

I'm sure it won't be too long before someone finally comes out with a coilover conversion kit for these cars where you slap your desired rate spring on and use a helper arrangement and adjustment perch to get the right height and droop without having to use progressive springs. Then there are other noises to fix too 🙃
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