[SVO429]

Have a look at where the inner race of the inside bearing locates on the hub, we found one which had been flogged out due to not having a spacer at all, this surface was about .010'' under size, and causing the wheel to flop 3/8" top to bottom,this cannot be rectified by just changing bearings and spacer ,you have to replace the hub.
When you tighten the hub nut it pulls the hub up against a shoulder on the half shaft, tighten the nut all you like ,it will not change the clearance/preload on the bearings, the spacer does this .
When i state hub i mean the component the wheel is bolted to,and not the hub carrier