Originally Posted by Overboost

So lately the back of the X5 felt unstable on road variance and hard braking.
Kept thinking yeah, I need to do the rear control arm bushings, they are probably worn out.

I really started to notice it the other day in a hard downpour running into normal hydroplaning areas on the freeway. The back just seemed disconnected.

I wondered about tires and gave them a good look and noticed the outer edge of my right rear was wearing ahead of the left and noticed some cupping.

Jacked it up and gave the wheel a lateral shove and Holy mother of God, it moved at least an inch.

Took the wheel off to find the tow arm had loosened up. I guess I hadn't tightened it enough when I did the Hard Race arms last year.

I tightened it up and all is good now but this is the second nut/bolt that I failed to get tight enough (front thrust arm was the first) even though I leaned on all of them when installing.

Note to self, stick to programming the race cars and leave nuts and bolts to the mechanics.