I would get full arms from fcpeuro. Either of the OEM brands are good and lifetime warranty. $110 should be about enough for a set of arms if you get lemfordder (sp).

Worn rear control arms are the primary cause of shaking if it's not always.

If you get 2-3 soft wiggles when you turn the wheel past center when driving 50-70 it's the best way to confirm, also soft to moderate braking at 40/50 mph also will usually cause a solid wobble.

Either of those tests produce wobble, it’s surely the control arms.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)