Ml 270 suspension

[Alunboy]

Hi got ml 270 163 changed top and bottom ball joints and since I have done this seems as if there is no suspension i.e I jacked up bottom ball joint it lifted ml of the axle stands as if the suspension was stuck it was fine before I done the work I have taken it all apart again jacked up the bottom wish bone and again just no give lifts car up can any advice me please alun