Most of it is due to the LENGTH of that trailer, it becomes a teeter totter with the axles so (relatively) close together.
Most of the rest of it is due to having the weight close to the axles.
I suggest;
a) Get the weight farther forwards.
b) Use a load distributing hitch to pick your truck up again.
c) Air bags MIGHT help the truck, they'd certainly be smoother than additional leafs.
Most of the rest of it is due to having the weight close to the axles.
I suggest;
a) Get the weight farther forwards.
b) Use a load distributing hitch to pick your truck up again.
c) Air bags MIGHT help the truck, they'd certainly be smoother than additional leafs.