Plenty of wiseguys did truck highjackings in the day. 95% of mobsters either were doing it full time or had done it at some point to cut they’re teeth
Fences were usually just that middle men that sold the goods and had the connections to move the high jacked goods. Usually the weren’t cowboy stick up men. And a lot of highjackings especially out of Kennedy and Aqeduct were give ups where the driver was in on it