So you have an unspecified half ton truck hauling a 2500lb TC.
Have to be if your truck only weighs 5200lbs. Or maybe it’s a classic 3/4ton….or your weights are off. Or you me at truck weighs 7700…..
Anyways 80-90psi in 5000psi bags is 4000-4500lbs of “support” or lifting force.
Numbers don’t add up, or you have the back of the truck jacked up with the bags taking all the weight plus some.
So aside from that part making absolutely no sense. Your 1 year to 50 year old shocks (since we don’t know the truck) could be shot. Although shocks do little to nothing to control lean or body roll. They only control the rebound of it.
Sway bar will help control lean/body roll.