Another fellow posted about adding a HD sway bar to the back of his truck and it got me to thinking.. Has anyone added a rear (or heavier front) SB to a truck used for towing a TT and if so did it ...
Anti-roll bars on cars and trucks are often incorrectly referred to as "sway bars" and so I am not surprised when I see the occasional confusion when it comes to RV towing and resisting trailer sway.
Not sure if this is the case with the OP.
As RJCorazza said these two "sway" bars resist motion in 2 different degrees of freedom, with the ant-roll bars resisting motion (of the TV only) about a longitudinal axis.