LOL! Ahh yes, the noise that sounds like you are ripping large pieces of metal in half, the sound that thousands of people on the titanic surely heard that fateful night, of metal twisting and stretching and then finally breaking
....oh wait, we are talking about the Equal-I-Zer....
As mentioned above, lube the sockets where they swivel on the head, I use some spray dry lube there and where the spring bars rub on the L brackets, quiets it all down nicely. There is an admonition on the manufacturer web site aboot the bracket jackets and lubing and I quote,
Utilizing lubrication on the Equal-i-zer L-Bracket, in the form of the Sway Bracket Jacket or any grease type lubricant, will likely lessen or decrease your sway control by a small degree. Steel on steel is the highest level of friction, steel on lubricated steel second, and steel on plastic third (but also the cleanest). The hitch head can be lubricated, as per the instructions, with no detriment to sway control."
The above info will also be useful for those on the forum that were unsure of how the sway control on the Equal-I-Zer actually worked.