I had a some noise in my rear suspension before I switched to the aftermarket setup. It was from some small stones lodged in the lower coil spring seat in the lower control arm. Yours may be a similar situation....
Zetec Crew #83
02 sedan ---> now an SC'd se.
Now intercooled 201whp & 186wtq on 93 octane
Hey -- we don't know nothing about kids. So if you need something... Find it yourself. Or better yet, learn to do without.