I own a 2002 Explorer XLT V.8 with 77k miles. Recently I have started to hear a noise from the rear end any time I go over any size bump. The sound is hard to describe, almost like a creaky noise, almost like old hinges on a window that is being open and closed continuously in the wind. I am assuming it has something to do with the suspension either shocks, springs, or could it be both.

Just trying to get some guidance. thanks

It sounds like the sway bar bushings are making noise. You could try greasing them or just replace them.