E300 w210 Upper Control Arm bolt tightening

[michakaveli]

Anyone know how to properly tighten the upper control arm bolt that connects the steering knuckle. I removed the steering knuckle joint from the upper control arm to free up the steering knuckle to allow more downward travel while performing suspension work. When I went to tighten it, the bolt spins and laughs at me. See photos....

I've got a feeling it may be time to just replace those upper mounts as well. I just replaced the lower control arms with news ones with new bushings installed and E55 springs. (right front corner only so far. 3 to go and it only took me a month )