I have a 01 2wd Cherokee 4.0 I keep hearing a clunk noise over bumps. Changed the endlinks, sway bar bushings, and 4 shocks already. But if I roll under my jeep there's a bar that goes from one side to the other and I guess connect to the lower ball joints? I can rotate it easily by hand back and forth a good 1/4 inch. Is thos supposed to move like that? Makes a clunk sound too. Thanks.... Dirty