C80
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1977 Chevy and GMC Medium, Heavy Duty Truck, Bus Wiring Diagrams Manual
General Motors Corporation
$29.951977 GM Models 40/45 thru 90/95 Trucks Electrical Wiring Diagrams Coverage for the following models: PS40 PS45 Bare Chassis, SE-60 School Bus, Medium Duty Conventional CE-50 CE-65 CS-50 CS-60 ME-60 CD-60, 5000, 6000, 6500, 7500, 8000, 9000, 9500, Steel...$29.95