I have an Equal-I-zer hitch and had the same issues with noise. You can buy a piece that goes over the WD brackets that will eliminate most of the noise - think that they call them "sleeves". I got a set, but haven't used them. Instead, I put some white lithium grease on the hitch ball along with some on the L-shaped brackets. That eliminated most of the noise except when making really tight turns. One thing to be SURE of, keep the adjustment bolts on the receiver tight or it will significantly reduce your sway control.