What about the noise?
Is it more of a clunk? Like a pop?
Or is it a clicking/crunching noise as you described (repititive)?
If its a clunk/pop, look at the sway bar links. If they are stock, they are prone to breaking apart at the top of the link where it connects to the sway bar.
There is a ball joint fitting there that is under a rubber boot. Rock the Jeep back and forth while watching that joint. See if the sway bar link is separating and moving independently of the sway bar.