I have refitted my parabolic springs to the chassis with new Polybushes. Do I need to carry out the spring setting procedure when setting the torque of the nuts on the springs and the shackles? It is understandable to set the springs when fitting standard Land Rover bushes, due to the bushes being moulded in one piece; but the Polybushes have a loose centre tube so tightening this with the springs in mid-point of deflection would not make a lot of difference as the tubes would move inside the polybush. Thanks