Engine Mechanical:
Detailed diagnosis, disassembly, inspection, repair, and assembly of all engine components for gasoline and diesel engines offered in 1980.
Engine Electrical:
Ignition system, starting system, charging system, fuel injection (if applicable), emission control systems, and related wiring diagrams.
Transmission Manual:
Service and repair procedures for all manual transmissions (e.g., Saginaw 3-speed, 4-speed, 5-speed options).
Transmission Automatic:
Service and repair procedures for all automatic transmissions (e.g., Turbo Hydra-Matic 350, 400, 700R4).
Drivetrain Rear Axle:
Diagnosis, overhaul, and repair of rear axles, including differential components and bearings.
Drivetrain Driveshaft:
Inspection, balancing, and repair of driveshafts and universal joints.
Suspension Front:
Service and repair of independent front suspension (I.F.S.) components, including control arms, ball joints, springs, and shock absorbers.
Suspension Rear:
Service and repair of leaf spring suspension, shock absorbers, and axle mounting components.
Steering:
Diagnosis and repair of power steering systems, steering columns, steering gearboxes, and tie rod assemblies.
Brakes Hydraulic:
Service for master cylinder, brake lines, wheel cylinders, and brake fluid specifications.
Brakes Disc:
Repair and replacement of brake calipers, pads, rotors, and related components.
Brakes Drum:
Repair and replacement of brake drums, shoes, springs, and adjusters.
Wheels Tires:
Wheel bearing service, tire pressure recommendations, and lug nut torque specifications.
Cooling System:
Radiator service, water pump, thermostat, hoses, and coolant specifications.
Fuel System:
Carburetor service and adjustment, fuel pumps, fuel tanks, and fuel lines.
Exhaust System:
Component identification, repair, and replacement of exhaust manifolds, pipes, mufflers, and catalytic converters.
HVAC System:
Air conditioning and heating system components, diagnosis, and service.
Body Interior:
Interior trim removal and installation, seat adjustment, and upholstery care.
Body Exterior:
Door panel removal, hood latch service, tailgate operation, and bumper alignment.
Electrical Lighting:
Headlight, taillight, interior lighting, and accessory lighting service.
Electrical Gauges:
Instrument cluster diagnosis and repair, including speedometer, tachometer, and warning lights.
Electrical Wiper Washer:
Wiper motor, linkage, and washer system service.
Electrical Audio:
Radio and speaker installation and troubleshooting.
Maintenance Routine:
Scheduled maintenance tasks, lubrication, filter changes, and fluid checks.
Troubleshooting:
Systematic diagnostic procedures for identifying and resolving common problems.
Repair Major Component:
Detailed instructions for rebuilding or replacing major vehicle components.
Repair Minor Component:
Step-by-step guidance for repairing or replacing smaller parts and sub-assemblies.
Adjustment Calibration:
Procedures for adjusting various systems, such as carburetor idle speed, ignition timing, and brake adjustments.
Wiring Diagrams:
Comprehensive electrical wiring diagrams for all vehicle systems.
Torque Specifications:
Detailed torque values for critical fasteners across all vehicle systems.
Depth:
Comprehensive, covering everything from basic preventative maintenance to complete engine and transmission overhauls, electrical system diagnostics, and body repairs.
Oil Change Interval:
Typically every 3,000 to 5,000 miles, or every 6 months, depending on driving conditions and oil type used.
Tune Up Interval:
Spark plug replacement and general tune-up recommended every 20,000 to 30,000 miles.
Engine Oil Type:
Refer to manual for specific viscosity grades (e.g., API SF or SG service classification), common for the era would be 10W-30 or 10W-40 depending on ambient temperature.
Transmission Fluid Type:
For automatic transmissions: Dexron II (or equivalent). For manual transmissions: GL-4 gear oil (e.g., 80W-90).
Coolant Type:
Ethylene glycol based antifreeze mixed with water (typically 50/50 ratio). Refer to manual for specific GM specifications for the era.
Common Wear Items:
Ball joints, tie rod ends, U-joints, brake components (pads, rotors, drums, wheel cylinders), carburetor wear, and exhaust system corrosion are common wear items.
Electrical Reliability:
Aging electrical components, including wiring harnesses, grounds, and switches, can become sources of intermittent issues.
Rust And Corrosion:
Body rust, particularly in areas like wheel wells, rocker panels, and cab corners, is a prevalent issue for vehicles of this age.
