Majestic 2011 28a Leaf spring replacement

[Majestic31]

Has anyone replaced their leaf spring pack. if so did it make a difference. mine is a VERY HARSH ride. installed Bilstein HD shocks Full Sumo spring on top of leaf springs, Sumo springs bump stops, Rear Sway bar. I am trying to get it to stop the very harsh BANG

[wolfe10]

OK, harsh ride can be the result of two VERY opposite issues:

Spring rate (leaf springs plus Sumo springs plus any shock dampening on compression) is too stiff. Little or no spring deflection over bumps.

Totally opposite: Spring rate (same components) so soft that the suspension bottoms out over bumps.

Your first job is to determine WHICH is occurring. Only then can you begin to address it.