Did he overtighten the brackets? If so, you will be replacing the hanger-brackets soon, the swaybar is supposed to move in the bushings.

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Gone to the dark side

- Jeff

This is one avenue that confuses me, half the crowd says the bushing and bar twist as one and half say the bar rotates in the bushing.

Odd part is that on some cars I do find the sway bar bushings to have a cross hatch matrix cast in them to hold some lubricant to prevent squeaking, some are smooth. I use teflon infused silicone grease on them.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)