Tightening lower control arm bolts

Can someone confirm how to tighten this:



I'm looking for a clunk and found that the right most nut in this pic is quite loose. I was getting ready to lean into it (I think spec is 150 or so), but I don't want to hose the alignment. Can I just go after it, or is there something I should be aware of, like having to hold one of the other two perfectly still?

 

Use a paint pen to mark the cam bolt position against the frame if you want extra assurance. Good thing to do anyway if you go off-road as the cam bolts may shift.

On the right side of the photo, tighten the small nut (22mm) to ~150 ft-lb while holding the larger nut stationary with channel locks or a big wrench.

I just give the small nut a few ugga-duggas with a cordless impact (rated for 250 ft-lb).