Equalizer manual;
"Integrated sway control works through the connection between your
spring arms and L-brackets, and between the sockets and hitch head. The
Equal-i-zer hitch takes advantage of the steel-on-steel friction generated at
these points to help reduce trailer sway."
"The friction surfaces of the head and sockets should be kept clean and
well lubricated with a good quality lubricant. They should be lubricated before
each trip. Check for damage or abnormal wear at the beginning of each
towing day and replace if necessary. Use a rag to clean dirt and road grit
from all friction surfaces regularly."
Noise:
"In some cases the friction on the L-brackets or sockets also generates
noise. This most commonly occurs during slow, tight turns where the tow
vehicle and trailer are in a twist. This noise is normal and should be expected.
It is an indication that there is friction on the L-bracket and sockets.
Most of the noise will usually subside after a few uses as the hitch breaks
in. Trailer and tow vehicle loading may also influence hitch noise.
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 Jackets. They quiet the ride without the mess of using a lubricant."
As most of you know, these two manuals are nearly the same. I'd just like to point out one last time for the nay-sayers, that regardless of what they claim as 4 points of friction for sway control (of which only Eqaulizer added mention to their manual), a WELL LUBRICATED steel joint, much less a pivot joint, does not add much friction to the set up. That's just common sense.