Knocking noise from rear suspension

[RWD-V8]

I have the same issue on my GXP. I raise the car and can't find anything loose. I even removed both sway bars and drove around. Still had the low speed clunking. I think I'm going to pull the entire suspension out not including sub frame and go through everything. Car is off the road for the winter so now is the time. 68K miles everything is original.

[vlj1216]

Low speed clunking and almost 70k I'd say rear upper control arm bushings