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      05-02-2021, 10:59 PM   #28
stevehifi
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Drives: 17 F80 M3 ZCP
Join Date: May 2008
Location: Irvine,CA

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ok, here's the problem - I had the same issue.

The problem is the clevis mount. I have bilstein clubsport and it uses a clevis mount similar to yours. The problem is that the clevis mount 3 holes are somewhat 'slotted', meaning they allow the bolt to move around. Under shock force, it allows the clevis mount 3 hole plate to move and 'knock' against the inner body. (sounds like a small hammer hitting).

I remember two things:
-increase torque of the bolts a bit higher
-I put a paper gasket between the clevis mount and mating surface to reduce movement
-other option is to cut a custom rubber gasket (thin), the pressure would prevent movement.

Steve
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