Flatbed trailer for WPL

Because I had some WPL wheels and an old flatbed from ZIL-157, I made a simple trailer.

There are need [623 bearings](https://www.banggood.com/TWO-TREES-10Pcs-Full-Metal-Flange-Ball-Bearing-608-or-623-or-624-or-625-or-626-or-688zz-Deep-Flanged-Pulley-Wheel-for-3D-Printer-p-1679183.html?rmmds=search&ID=510170&cur_warehouse=CN&p=J7171269288462016106&custlinkid=1330913), [WPL wheels](https://www.banggood.com/WPL-WPLB-1-Wheel-Complete-4PCS-RC-Crawler-Car-Parts-p-1243609.html?cur_warehouse=CN&rmmds=search&p=J7171269288462016106&custlinkid=1330913) and some M2, M3 screws, nuts.









https://www.youtube.com/watch?v=tM4LoNxPn6k