2 sway bars on a pull behind trailer

tewitt1949 wrote:
I should have mentioned I have a 2018 Chevy 2500hd duromax. The sway problem didn't just start with this truck. I've been pulling the trailer since 96 when new. I think the tongue weight is 800 lbs. I always have put max pressure (80 lb) in all 8 tires on the truck and trailer and that does help a lot. The last time I pulled (a couple weeks ago) I did tighten the pressure on the sway bar (tighter) and that did help and took a lot of sway out of it. It don't go back and forth while just driving, but wiggles a little when big rigs pass and some other vehicles. My trailer weighs 8500 empty. I know tongue weight is important. The reason I'm thinking 2 bars would be better is after tightening the one sway bar did help quite a bit and now seems to be more stable, I assume 2 bars would would be even better. It would put even pressure on each side of the tongue and not excessive pressure on just one side. Maybe the whole problem is I just didn't have enough swaybar pressure all along. When it sways or wiggles it makes for a white knuckle drive.

Yep. you need more tongue weight. Always remember. FIX the sway problem. And then, and only then do you add sway control. sway control is not designed to allow you to drive down the road normally. It is for those times that sway is induced by jerking the steering wheel, or some other emergency.