I am no expert in anyway, but are you implying in that pic that the axle isn't level?
It may not be possible, but I would be inclined to jack the car up on both sides so it is level, then see how the axle lies, assuming it is not sitting on the chassis.
The axle is level. It’s the body that is on the P. One side of the axle is the right height from the bump stop, the other is on the chassis bump stop, thus I believe forcing the O/S higher.
I could simply be looking at a naff spring, that has not enough oomph to raise the axle.