1987 GMC Brigadier Service and Repair Manual

1987 GMC Brigadier service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.

What’s included

• Step-by-step repair procedures and service information
• Specifications and reference data (where provided)
• Wiring diagrams and electrical sections
• Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

• J9C042 Tractor Truck - Short Conventional
• J8C064 Straight Truck - Short Conventional
• J9C064 Straight Truck - Short Conventional
• J8C042 Tractor Truck - Short Conventional
• J8C042 Straight Truck - Short Conventional
• J9C064 Straight Truck - Low Tilt
• J9C020 Gliders - Short Conventional
• J9C064 Tractor Truck - Short Conventional
• J9C064 Tractor Truck - Low Tilt
• J9C042 Straight Truck - Short Conventional

Engines covered

• 10.0L 10014CC 611Cu. In. l6 DIESEL Turbocharged
• 14.0L 14013CC 855Cu. In. l6 DIESEL Turbocharged
• 9.0L 9047CC 552Cu. In. V6 DIESEL
• 7.0L 6982CC 426Cu. In. l6 DIESEL
• 10.4L 636Cu. In. V8 DIESEL
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Index / Table of contents

• Body
• Brakes
• Chassis Electrical
• Driveline
• Engine Cooling
• Engine Electrical
• Engine Mechanical
• Engine Performance & Emission Controls
• Fuel System
• General Information & Identification
• Heating, Ventilation, & Air Conditioning
• Hybrid & Electric Vehicle Systems
• Steering
• Suspension
• Transmission, Clutch, & Transfer Case
• Wiring Diagrams