Prototype information on DODX 6 axle heavy duty flatcars

Model Railroader Prototype information for the modeler
1

Hi everybody.

I’m seeking Prototype information on DODX 6 axle heavy duty flatcars, 40000 series. does anyone know who built these cars, have mesurements, or maybe even a plueprint or simular.

Your help would be much appriciated.

Peter