clutch problem

When I push in on the clutch the throw out bearing goes in to far and it is making a noise. I backed off the adjustment nut but now that rod is sloppy. What is the proper way to adjust the nut on the adjustment rod? I had it in a shop and they put a rubber bumper on the firewall to keep the clutch peddle from going down too far but it is still to much travel.
Author: moparstables