Machine description: 1991 John Deere 770B-H motor graderHours: 10,379 on meterSerial: DW770BH532392EngineJohn DeereCylinders: 6Fuel type: DieselTransmissionPowershift8F - 4ROperators stationEnclosed cabAC, HeatHydraulic c... more info about the 1991 John Deere 770B-H.