CASTING HOUSING FOR A DOOR MOTION ASSEMBLY

A casting housing for a vehicle body having an enlarged passenger opening includes a body extending from a first housing end to a second housing end to define a compartment. At least one of a front door pivot-type door motion assembly is disposed within the compartment adjacent the first housing end or a rear door pivot-type door motion assembly is disposed within the compartment adjacent the second housing end, with preferably both disposed within the compartment. The casting housing is attached to the vehicle body, preferably along a lower body side rocker structure, to indirectly attach the front and/or rear door pivot-type door motion assemblies to the vehicle body at any time during manufacture of the vehicle, after which the front and rear doors are attached to the front and rear pivot-type door motion assemblies for pivoting the doors relative to the enlarged door opening between open and closed positions.