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Replaced my struts with new Tein coilovers. I don't have a torque wrench but all bolts seem firm. Test drive after installation has a near constant thumping noise from the rear regardless of bumps in the road. I still need wheel alignment so only topped at 15mph. Cluncking after new coilovers appears prevalent but this sounds more like it's hitting something. Maybe the end links?

The dampers have 16 clicks. I adjusted it 5 down from hardest.

Driver side rear (before I tightened the 2 knuckle bolts): enter image description here

Old vs new. I kept the same height. enter image description here

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  • Is the ‘thumping’ frequency related to the vehicle speed?
    – HandyHowie
    Commented Jun 7, 2022 at 18:30
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    Did you tighten all the bolts after the vehicle weight was back on the wheels.
    – HandyHowie
    Commented Jun 7, 2022 at 18:30
  • Can you add a photo of the new parts.
    – HandyHowie
    Commented Jun 7, 2022 at 18:31
  • Which car do you have?
    – HandyHowie
    Commented Jun 7, 2022 at 18:31
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    In the first photo it appears that the hardware attaching the strut to the spindle is loose, Was this photo before the you finished?
    – mikes
    Commented Jun 7, 2022 at 18:57

1 Answer 1

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USE A TORQUE WRENCH. Turns out the lug nuts on the wheels came loose.

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    Glad you said it, because I was going to. "It seems tight enough" rarely is. Especially for suspension parts.
    – FreeMan
    Commented Jun 8, 2022 at 17:00
  • I erred on the side of loose because I didn't want to risk breaking a bolt but having a wheel falling off is even worse. Glad I didn't go past 20mph.
    – findwindow
    Commented Jun 8, 2022 at 17:04

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