🏷️ Basic Information Identification Make: Chevrolet Model: C/K Pickup Year: 1998 Codes Platform Code: GMT400 👋 Introduction Market Position Segment: Full-size pickup truck Competitive Analysis Competitors: Ford F-Series, Dodge Ram Pickup Key Features Body Styles: Regular Cab, Extended Cab (Club Cab), Crew Cab (available later in generation) Bed Lengths: Short Bed (6.5 ft), Long Bed (8 ft) Drive Types: Rear-Wheel Drive (RWD), Four-Wheel Drive (4WD) Trim Levels: Base, LS, LT, Z71 (off-road package) 📋 Manual Details Coverage Areas Coverage Scope: All Models and All Repairs A-Z Page Count Estimated Page Count: 1500+ Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanical, lubrication, cooling, fuel, ignition, exhaust, emissions control, diagnostics Transmission Systems: Manual and automatic transmission service, overhaul, diagnostics, fluid specifications Drivetrain Systems: Driveshafts, U-joints, differentials (rear axle), hubs, CV joints (if applicable for 4WD) Suspension Systems: Front and rear suspension components, alignment, shocks, springs, ball joints, bushings Steering Systems: Power steering, steering column, steering gear, tie rods, linkages Brake Systems: Front and rear brakes (disc/drum), ABS system, parking brake, hydraulic system Electrical Systems: Battery, charging system, starting system, lighting, instruments, gauges, accessories, body electrical, chassis electrical, wiring diagrams HVAC Systems: Heating, ventilation, and air conditioning (HVAC) system components, operation, and service Body Systems: Body construction, interior trim, exterior trim, doors, windows, latches, glass, bumpers Frame Chassis: Frame inspection, repair, and modifications Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes, filter replacements, lubrication, inspections Repair Procedures: Component removal, installation, adjustment, and overhaul for all major systems Troubleshooting Diagnostics: Diagnostic charts, symptom-based troubleshooting, fault code interpretation, electrical diagnostics Technical Specifications: Torque specifications, clearances, adjustments, component data, electrical schematics Wiring Diagrams: Detailed electrical wiring schematics for all vehicle systems Technical Depth Depth: Comprehensive (Dealer-level diagnostics, complete rebuilds, in-depth troubleshooting) 📊 Manual Specifications File Format File Type: Likely PDF Print Quality Quality: High-resolution scans of original factory documentation Binding Type Binding: N/A (Digital format) Paper Type Paper: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Options: 4.3L V6 (Vortec 4300), 5.0L V8 (Vortec 5000), 5.7L V8 (Vortec 5700), 7.4L V8 (Vortec 7400) Performance 4.3L V6 Horsepower: 200 hp @ 4400 rpm 4.3L V6 Torque: 260 lb-ft @ 2800 rpm 5.0L V8 Horsepower: 220 hp @ 4600 rpm 5.0L V8 Torque: 275 lb-ft @ 3200 rpm 5.7L V8 Horsepower: 255 hp @ 4600 rpm 5.7L V8 Torque: 330 lb-ft @ 3200 rpm 7.4L V8 Horsepower: 295 hp @ 4000 rpm 7.4L V8 Torque: 410 lb-ft @ 3200 rpm Fuel System Fuel Injection: Sequential Electronic Fuel Injection (SFI) Fuel Type: Unleaded Gasoline 🔧 Transmission Standard Standard Transmission: 5-speed manual (NV3500 for V6/5.0L V8, NV4500 for heavy duty) Optional Optional Transmission Auto: 4-speed automatic (4L60E for V6/5.0L/5.7L V8, 4L80E for 7.4L V8) Features Transfer Case 4Wd: New Venture Gear (NV) 233 (manual), NV246 (electronic autotrac on select models) 📐 Dimensions Exterior Wheelbase Regular Cab: 118.0 inches Wheelbase Extended Cab: 130.0 inches Overall Length Short Bed: 211.7 inches Overall Length Long Bed: 229.5 inches Cargo Cargo Bed Volume Short Bed: 73.8 cu ft Cargo Bed Volume Long Bed: 87.8 cu ft Weights Curb Weight Range: Approx. 4,200 - 5,500 lbs (depending on configuration) Max Gvw Range: Approx. 6,200 - 7,200 lbs (depending on configuration) 🛡️ Safety Features Ratings NHTSA Driver Side Frontal Impact 25Mph: Not rated or not tested under current protocols NHTSA Passenger Side Frontal Impact 25Mph: Not rated or not tested under current protocols Active Features ABS: Standard on 4WD models, optional on 2WD models (rear-wheel ABS typically) Passive Features Airbags: Driver-side airbag standard, passenger airbag optional on some models Seatbelts: Three-point seatbelts 💡 Technology Features Infotainment Audio Systems: AM/FM radio with cassette player, optional CD player, upgraded speaker systems. Driver Assistance Cruise Control: Optional on most models. Connectivity Trailer Wiring Harness: Available connector for trailer lighting and braking systems. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil type. Transmission Fluid Change: Every 30,000-50,000 miles for automatic transmissions, consult manual for manual transmission intervals. Coolant Change: Every 30,000-60,000 miles or 2-4 years, depending on coolant type. Fluid Specifications Engine Oil Type: SAE 5W-30 or SAE 10W-30 (depending on temperature), consult manual for specific viscosity and API service classification. Automatic Transmission Fluid: Dexron-III (or equivalent) Coolant Type: Conventional green ethylene glycol based coolant Known Issues Intake Manifold Gaskets: Common failure on Vortec V8 engines leading to coolant leaks and misfires. Crankshaft Position Sensor: Can fail, leading to no-start or stalling issues. Rust Perforation: Common in areas with road salt, especially on lower body panels, rocker panels, and bed. Fuel Pump Failures: Can occur, especially with age. Heater Core Leaks: Can cause coolant smells inside the cabin and fogged windows. 📚 Vehicle History Brand Heritage Chevrolet Truck Legacy:...