We too tow with the Dodge 3500 dually and had no problem towing our 39ft 5th wheel. But what happened is when we hit rough roads we would be hitting the over load springs which gave a rough ride. We dropped about 3 inches when hooked up. We installed the Firestone Ride Rights and what a difference it made in ride and handling. It was the best
$310.00 I ever spent. And I was able to install them myself in less than 3Hrs. Now when I tow I just add 45 lbs of air in each bag and off we go. I leave 10 lbs of air in the bags when not towing and I don't see any difference in the ride. Before I installed them I asked
others how they liked towing with them and all feed back was positive.
I would not have another tow vehicle without them.