This bolster pair converts an AtlasO Trinity 5161 Covered Hopper to mount Protocraft couplers with a more realistic coupler box and locating holes for mounting either the existing brake hardware from the Atlas Bolster, or you can fabricate your own, until I produce the parts in resin. You will need to purchase a bolster to convert either the trucks that came with the car to Proto48, or you can purchase my 100Ton Roller bearing trucks from my Shapeways store. You will need the Atlas style mount, not the flush mount version. This can only be printed in FUD (I don't think that XFD is worth the increase in price) so it is fairly brittle. If using the truck mount screw that came with the Atlas car, please tap the mounting post as it will shatter if you try to just drive the screw in.
Thanks!