Dully come with no sway bar?
I would not rush to anything. When I was ready to pick up my new truck, this forum flooded me with things I should do.
Turn out, I had to do ... nothing.
Newer dually carries 6000 lb of camper just fine. No sway, no bottoming out, perfect control and with 440 HP engine, I am racing BMWs at green lights.
Eventually I put Sulastic hangers for empty ride comfort and put hockey puck on upper overload.. just in case.
So get new camper, observe how much truck sags under the weight, check how much space you have to axle bumpers and then make your mind.
