I used the air lift brand and here is a before pic with Distributon bars attached.
And here is an after pic with no WD bars attached. It's hard to see becasue of the shadows and the angle but ollk at the distance from the center of the wheel and the top of the fender opening on the rear tire. It's a big difference between the 2 pics.
It's a HARSH ride when ther is no weight on the rear, but you can adjustthe pressure in them. I usually run about 80 PSI when loaded witht the truck and trailer and about 25 when unloaded.