Re: 1971 GMC Bus - Toro-Flow DH478
The DT478 was used in rear engine GMC school bus chassis (DSPA 5000's?) that were built with Superior bodies for the U.S. Army. The buses could be converted into large ambulances, a common feature of Army buses at the time. As far as I have been able to find out, these buses were the only vehicles built to use the DT478, though there were marine versions of the turbocharged ToroFlow. Many of these buses were eventually re-engined with small Cummins V-8's after 8-10 years of service.
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