Thanks guys,
so if you only want to change the track with you'll have to use shims, and if you want to play with your roll center you can change the suspensionblocks (and also change the shims to be sure your width is equal)?
The difference in shock positions I shouldn't mentioned myself, but that difference looks small if you realise that you change it by 0,5mm (maybe 1 degree?). But then you remember you wanted to change your track width with 0,5mm, and that is the same lenght