Originally Posted by jgos929
What do you consider sitting "just fine". I have Airlift bags in mine and just acquired a 30' travel trailer that has a curb weight of #4800 with a #650 hitch weight. I filled them to 35psi and still had 2 + inches of sag. I would love to see what yours looks like with a #5500 trailer hitched up and only 5psi in the bags.
The bags are meant to be filled to 35psi when you got a heavy load so why not do it?
With a trailer #5000 and up you definitely need a WD hitch or your gonna hurt your truck in the long run.
I'll be leaving on a trip this Friday with the trailer, so I'll take a shot of the truck with the minimum 5psi for comparison. On the lack of a WDH, I pulled this and an almost exact trailer with my full size GMC 1/2 ton Jimmy for about 23 years with just airbags and a swaybar control...original differential, two sets of new u-joints, original bushings and front end parts, no frame or suspension problems...all on a 300,000 mile vehicle when it was all said and done. A neighbor now owns that Jimmy since last December, so I still see the vehicle frequently. Are you saying this Dodge isn't up to towing the same trailer without a WDH without damage? I find that hard to believe. And if it turns out it is, then I guess I'll go back to a GM truck...LOL!
But seriously, I'd agree that a WDH is best when it's required in those instances. Mine doesn't need it, and I see no reason to run one. As to running airbags at maximum pressure, I don't see the logic in that. That's the beauty of full air suspension or even just air assist. I've had a lot of vehicles equipped with one or the other ranging from street vehicles, to motorcycles, and even mountainbikes. I never ran any of them at full maximum pressure even with a load. Maximum psi ratings are usually there for the worst case scenario. I would disagree with your statement that the bags are meant to be filled to 35psi. If you indeed need the 35 psi in the air bags, then I'd say your setup is definitely in need of a WDH. One other variable in my setup compared to yours or others, I can't say with absolute certainty what my tongue weight is. It may not be at the same level as yours. And even if my truck would pull my trailer without the air bags, I like the security of the bags to inhibit porpoising or rocking in certain conditions. I'm certainly not bad-mouthing WDH's, but you don't always need one.