Offering a what might be a "modular" prototype Smith-Miller part. This is 1952 vintage Smith-Miller B MACK SEMI TRUCK CHASSIS PART. What makes this unique is a professional modification to the 5th wheel hitch base. This version has a threaded, removable hitch pin that leaves a threaded "female" hole (yes, sexy) that will accept trailers with male hitch pins (similar to Tonka, MIC, etc). This part has all die cast aluminum construction. The modular pin has a machined Allen Head screw...a wrench is included to remove or tighten hitch pin.

Measures 14 3/4" long

CONDITION: Excellent overall, has an older repaint job...has minor scratches. Metal is very good (see photos). 

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WE GLADLY COMBINE SHIPPING WHENEVER POSSIBLE