This model was built on the Bachmann B23-7 drive and walkway using an Atlas C30-7 cut down and reassembled to represent a B23-7. The introduction of the Atlas B23-7 caused work on this model to languish, but my inability to rework the Bachmann trucks with better sideframes put an end to any further work. A portion of the shell was reworked as a U36B shown in another gallery.