Originally Posted by rbrumfield
Reese do but Equal-i-zer bars do not.
Although the Equal-i-zer manual doesn't say to lubricate the bars, it does state the following:
"Lubricating the socket joint may help reduce this noise, and is part of the required regular maintenance routine. Lubricating the L-bracket joint is optional. A better solution is a set of official Equal-i-zer brand Sway Bracket JacketsTM. They quiet the ride without the mess of using a lubricant."