Stop everybody, parts are missing !
Please find bellow the picture of a millenium and a classic lazer plate.
2 holes : the one for the axle (bushings) and the one for the truck tip (pivot cup ?). Don’t you notice that there is something (pin seat ?) inside the plate to welcome the tip ?
And this little « tube » (pin seat ?) is missing on your plates. So your truck is floating inside of the plate.