Are all the Diesel trucks supposed to have it? Because i have never had a rear sway bar? thanks Mario

 

Mario: On the 2500 and 3500 series ram trucks, the anti sway bar was part of the trailer towing package. But is available after market. Mine was included in the "Camper special group for $95. and included rear anti sway bar and overload springs rear. [ well worth the 95 bucks]