🏷️ Basic Information

Make:

Chevrolet

Model:

Light Duty Truck

Year:

1979

Series:

Series 10-35

Vehicle Type:

Chassis

Chassis Code:

K/C/V-Series (C for 2WD, K for 4WD, V for Van chassis)

👋 Introduction

Era Context:

Represents the robust and versatile light-duty truck offerings from Chevrolet during the late 1970s, a period of evolving emissions standards and increasing consumer demand for capability and comfort.

Competitors:

Ford F-Series, Dodge Ram

Versatility:

C/K series chassis offered a wide range of configurations for work, recreation, and specialized applications.

Durability:

Known for rugged construction and reliable powertrains suitable for demanding tasks.

📋 Manual Details

Primary Focus:

Chassis Service and Repair

Included Series:

Series 10, Series 15, Series 20, Series 25, Series 30, Series 35

Estimated Page Count:

Approximately 1500-2000 pages (typical for comprehensive factory service manuals of this era)

Type:

Service and Repair Manual

Language:

English

File Format:

PDF

Print Quality:

Full Printable

Zoom Functionality:

Yes (Zoom In/Out)

Delivery Method:

Instant Download

Software Requirements:

Adobe PDF Reader, WinZip

Operating System Compatibility:

All Versions of Windows & Mac

📖 Manual Coverage

Engine:

V8 (305, 350, 454 cid), Inline-6 (250, 292 cid), V6 (3.8L, 4.3L Diesel) - Overhaul, troubleshooting, specifications

Fuel System:

Carburetor (Rochester Quadrajet, Carter ThermoQuad, etc.), Fuel pumps, Lines, Tank - Diagnosis and repair

Cooling System:

Radiator, Fan, Water Pump, Thermostat, Hoses - Maintenance and repair

Exhaust System:

Manifolds, Pipes, Mufflers, Catalytic Converters (if applicable) - Inspection and replacement

Ignition System:

Distributor, Spark Plugs, Ignition Wires, Coils, Electronic Spark Control (ESC) - Testing and adjustment

Transmission Manual:

Muncie SM465, Saginaw 4-speed - Overhaul, clutch, linkage

Transmission Automatic:

Turbo Hydramatic TH350, TH400, TH700R4 - Overhaul, fluid, diagnosis

Drivetrain:

Driveshafts, U-joints, Universal joints, Differentials (open, limited-slip), Rear Axles - Service and repair

Steering System:

Power Steering Pump, Steering Gear, Tie Rods, Ball Joints - Diagnosis, overhaul, and alignment specifications

Suspension Front:

Coil springs, Control Arms, Shock Absorbers, Ball Joints, Bushings - Alignment, repair, and specifications

Suspension Rear:

Leaf Springs, Shock Absorbers, Spring Shackles - Inspection and replacement

Brakes Front:

Disc Brakes (calipers, rotors, pads), Brake Lines, Master Cylinder - Service and repair

Brakes Rear:

Drum Brakes (shoes, drums, wheel cylinders), Parking Brake - Adjustment and repair

Electrical System:

Wiring Diagrams, Fuses, Relays, Lighting, Starting System, Charging System (Alternator, Battery) - Troubleshooting and repair

Chassis Body:

Frame, Cab Mounting, Bed Mounting, Bumpers - Inspection and repair procedures

HVAC System:

Heater core, A/C components (if equipped), Ducts - Diagnosis and repair (chassis specific aspects)

Maintenance:

Lubrication, Fluid Changes, Filter Replacements, Tune-up procedures

Troubleshooting:

Systematic diagnostic procedures for common and uncommon faults

Repair:

Step-by-step instructions for component removal, installation, and adjustment

Overhaul:

Detailed procedures for complete engine, transmission, and axle rebuilds

Specifications:

Torque values, clearances, fluid capacities, timing settings, alignment data

Depth:

Comprehensive - Covers basic maintenance to major overhaul and diagnostics.

Diagrams Illustrations:

High-quality diagrams, exploded views, and detailed illustrations.

Ease Of Use:

Written for both DIY enthusiasts and experienced mechanics.

📊 Manual Specifications

File Type:

PDF

Pages:

Full Printable

Binding:

Digital (N/A for PDF)

Paper Type:

Digital (N/A for PDF)

⚙️ Engine Specifications

Inline 6:

250 cu in (4.1L), 292 cu in (4.8L) - 1-barrel carburetor, known for torque and durability.

V6:

3.8L (229 cu in) V6, 4.3L (262 cu in) V6 Diesel (GM 6.2L precursor, though less common in 1979 light duty C/K) - Carbureted gasoline variants offered balance of power and economy.

V8 Small Block:

305 cu in (5.0L), 350 cu in (5.7L) - 2-barrel or 4-barrel carburetor options, providing a good blend of performance and towing capability.

V8 Big Block:

454 cu in (7.4L) - Primarily for heavy-duty applications (Series 25-35), 4-barrel carburetor, high torque output.

Horsepower Range:

Approximately 100-170 HP (varies significantly by engine and emissions controls)

Torque Range:

Approximately 170-290 lb-ft (varies significantly by engine)

Carburetion:

Rochester Quadrajet, Carter Thermo-Quad, Rochester 2G/2GV

Emission Controls:

Catalytic Converter (Federal and California models), EGR (Exhaust Gas Recirculation), Air Injection Reactor (AIR) System, Positive Crankcase Ventilation (PCV)

🔧 Transmission

Manual Gearbox:

Muncie SM465 4-speed manual, Saginaw 3-speed manual (less common on heavier duty models).

Automatic Gearbox:

Turbo Hydramatic TH350 (3-speed), TH400 (3-speed, often for heavier duty), TH700R4 (4-speed overdrive, introduced late in the decade or early 80s for this platform).

Transfer Case:

NP203 (full-time 4WD with differential lock), NP205 (part-time 4WD, robust).

Manual Transmission Fluid:

GL-4 Gear Lube (e.g., SAE 80W-90 or SAE 50W)

Automatic Transmission Fluid:

Dexron II Automatic Transmission Fluid (ATF)

Transfer Case Fluid:

GL-4 Gear Lube (e.g., SAE 80W-90 for NP205), ATF (for NP203)

📐 Dimensions

Wheelbase Options:

Various wheelbases depending on chassis series and configuration (e.g., Fleetside, Stepside beds, chassis cab).

Gvwr Range:

Gross Vehicle Weight Rating varied significantly by series, from approx. 4,500 lbs (Series 10) to over 10,000 lbs (Series 35 Heavy Duty).

🛡️ Safety Features

Crash Testing:

Modern crash testing standards were less stringent. Primarily focused on occupant protection with available seatbelts.

Braking System:

Front disc brakes standard on most models; rear drum brakes. Power brake booster optional or standard depending on series and GVWR.

Seatbelts:

Lap belts standard; shoulder belts often optional or part of specific packages.

💡 Technology Features

Radio Options:

AM/FM radio, AM/FM with tape player (optional), CB radio integration (less common).

Cruise Control:

Optional on many models.

Air Conditioning:

Factory or dealer-installed A/C systems were available.

🔧 Maintenance

Oil Change:

Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions. Consult manual for specific recommendations.

Tune Up:

Spark plugs, points (if applicable), condenser, distributor cap/rotor typically every 20,000-30,000 miles. Electronic ignition systems extended intervals.

Transmission Fluid Change:

Every 24,000-36,000 miles or as recommended by Chevrolet.

Engine Oil:

API SG or SF rated oil, viscosity grade depending on ambient temperature (e.g., 10W-30, 10W-40, 20W-50). Check manual for precise recommendations.

Coolant:

Ethylene glycol-based antifreeze, mixed 50/50 with distilled water. GM Color: Green.

Brake Fluid:

DOT 3 Hydraulic Brake Fluid

Power Steering Fluid:

Dexron II ATF or specific GM power steering fluid.

Carburetor Issues:

Rochester Quadrajet and Carter Thermo-Quad can be prone to diaphragm leaks, clogged idle circuits, and adjustment drift.

Rear Main Seal:

Common leak point on many V8 engines of this era.

Suspension Bushings:

Rubber bushings in control arms and leaf springs can degrade over time, leading to noise and alignment issues.

Brake Wear:

Drum brake adjustment and shoe wear are typical maintenance items. Disc brake pads and rotors require regular inspection.

Electrical Corrosion:

Grounding points and electrical connectors can corrode, leading to intermittent electrical faults.

📚 Vehicle History

Chevrolet Truck Legacy:

Chevrolet has a long and storied history in the truck market, dating back to the early 20th century, known for building durable and capable vehicles.

Third Generation C K:

The 1973-1987 C/K generation, also known as the 'Rounded Line' or 'Square Body' era, represented a significant redesign focusing on improved aerodynamics, comfort, and payload capacity.

Manufacturing Locations:

Various GM assembly plants across North America.

🏆 Awards & Recognition

Truck Of The Year:

While specific awards for the 1979 model year are not prominently documented, the C/K platform consistently received accolades for its utility and durability in various automotive publications of the era.

Consumer Satisfaction:

Known for strong owner loyalty and perceived reliability, contributing to its long production run.