Sound of... Suspension? HELP

Good afternoon! :grin:

Well, I’ve been hearing a certain noise that’s been bothering me:

If you pay attention to the video and listen carefully, when the rear axle drops, you can hear a kind of metallic ā€œclonk,ā€ like a sheet metal sound.

The noise only occurs when moving over some irregularity in the terrain or a speed bump; however, I always notice it coming from the back (both axles).

I’ve taken it to a workshop and they don’t see anything unusual or loose, I’ve put it on a lift and hit all the undercarriage parts everywhere and it doesn’t make any noise at all, nothing is loose either… I’ve also spent a couple of days putting the car on jack stands, removing the wheels, hitting everything, trying to tighten everything well and nothing… It keeps making the noise.

I have the trunk completely empty, I’ve loosened the rear stabilizer bar and it’s firm, I’ve checked the wheel bolts, making sure the exhaust doesn’t touch any sheet metal…

These are some of the things I have that could affect (or not):

  • Changed exhaust (intermediate and rear)
  • Changed exhaust hanger
  • Original wheel bolts (the factory ones were cut with a grinder and I had to replace them)
  • 18-inch wheels (JR)
  • Eibach springs (front and rear)
  • At one point before changing the wheels, I used spacers

Any ideas are welcome :grin:

Thanks!!

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