#PD-4104

This GM bus revolutionized the industry, and set the template for all over-the road buses to come: forward control, rear transverse diesel engine, the famous fluted aluminum “Silversides” cladding, semi-monocoque construction, high floor and underfloor luggage compartments. But its wildest feature was not replicated: a four-on-the-tree shifter and its mechanical linkage back to the non-synchronized gear box; something had to be left to improve. Let’s check it out and delve into the history and workings of its legendary Detroit Diesel 6-71 engine, which first made its appearance here.