It's funny how people start telling a guy whether they think he needs airbags rather than discussing the question he asked.
The airbags and the tension setting on the hitch bars both affect each other.
The first time, you'll need to do some dialing in.
If you set the weight distributing bars first then air up the bags, the bars will loosen as the truck comes up. You'll have to play around with it until you have the right combination of air pressure and bar tightness.
After that, the easiest is to hitch up, air up, then connect the bars last. If you try to connect the bars before airing up and the truck is squatting, you'll have to pull a lot harder on them to get them on.
Once you have found the happy setting where your bars are properly tensioned when the truck sits level with a little airbag help, you should be able to always use that same bar adjustment setting and adjust the airbag pressure to maintain level depending on how much extra stuff you've got in the back of the truck.
2017 Northern Lite 10-2 EX CD SE
99 Ram 4x4 Dually Cummins
A whole lot more fuel, a whole lot more boost.
4.10 gears, Gear Vendors overdrive, exhaust brake
Built auto, triple disc, billet shafts.
Kelderman Air Ride, Helwig sway bar.