Y-Axis End Stop holder 8mm bushing

I have upgraded my Ez3D Phoenix printer's bed carriage.

I used
4 - M3 bolts
4 - M3 Nuts
4 - SK8 8mm CNC Linear Rail Shaft Guides
4 - SCS8UU Linear Motion Ball Bearing CNC Slide Bushing
2 - 8mm Stainless Steel Rods

This y-axis switch holder mounts under the aluminum bearing.