Abstract: A replacement for a freight car roller housing assembly in which there are two hollow wheel wells having rollers journalled therein, the wells being respectively connected by a block extending between them. The block has a vertical cylindrical passageway and one of two different kinds of thimble-shaped bushings engaged therein. One is plain and provides for the bottom end of a plug door pin to be carried therein without provision for vertical adjustment of the pin. The other is threaded and slides vertically in the passageway but can be adjusted by means of an exterior nut threaded at the upper end thereof, the latter bushing adapted to have the bottom end of a plug door pin carried therein and being adjustable vertically by rotating the nut which engages the upper side of the block.

Abstract: A replacement wheel assembly for railroad freight car doors of the type which utilize a lever and cam arrangement in connectIon with wheels or rollers mounted on the ends of a bar that can be raised and lowered by manipulation of the lever.The replacement assembly comprises a wheel mounted on a plate. To install the same, an opening is cut in the side of the freight car door aligned with one of the wheels carried on the ends of the bar, the bar is cut and the original wheel removed from the opening. The replacement wheel of the wheel assembly is slipped into the interior of the door and its mounting plate welded to the outside of the door.