I have a DZ on my LX.No noise,and I do mean NO noise.When the D-Z's first came out,I had one on my S-C Patriot,and it had a metalliac click to it.I used some Plasti-Dip were the launcher arm dropped and that seemed to take care of it.If you bought your DZ new,I'd take it back or call T-R customer service.Of course,this is assumming that the DZ is installed properly to begin with...Bob