Yeah it's tight between the lower overload and the spring pack. Just eyeballing it 3/16" at most. The fronts have maybe 1/4".
The more I read, it will likely not be the bags. Either a sway bar, the StableLoads, or nothing.
When I was going to Broken Bow Oklahoma recently, I remembered the curves on HWY 259 near Idabell. About 1983 I thought I was going to flip my F250 with a cabover on it. Counter steering into the wind with a very acute lean. Oncoming traffic riding their shoulder, almost as scared as I was.
I'll call Torklift.