I've been away too long? I had the rear bar which was the Camper Pkg option on my 98'. Did not realize that may have been the last offering. I may end up addingThe last rear anti-roll bar I recall was part of the camper package on the 2nd gen trucks. My 2002 3500 had one.
Rusty
I have installed both the standard and big wig from hellwig.
They are both easy installs, and have the typical cheaper hardware for 1 time installation.
For a heavy camper there isn't much you can do to the suspension that has the stability of an anti-sway bar and the Big Wig is perfect, for trailers (5er or TT) the standard bar makes a huge difference in handling as well.
That is a shame with no sway bar on a 3500
Just helped a friend of mine Bag his 2014 5500 and it had a sway bar, which was replaced with a larger one from the Air bag Kit.
TGP