🏷️ Basic Information Identification Make: Jeep Model: CJ-3B Year: 1968 Codes Chassis Code: CJ-3B 👋 Introduction Market Position Vehicle Segment: Compact, utilitarian off-road vehicle. Competitive Analysis Contemporary Competitors: Willys CJ-5, International Harvester Scout. Key Features Ruggedness: Renowned for its durability and off-road capability, a signature Jeep trait. Simplicity: Mechanical simplicity makes it relatively easy to maintain and repair, a key selling point for enthusiasts. Versatility: Adaptable for various uses, from military applications to civilian work and recreation. 📋 Manual Details Coverage Areas Content Overview: Comprehensive service, repair, and maintenance information for the 1968 Jeep CJ-3B. Page Count Estimated Page Count: 300-500 Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: Digital (likely PDF, searchable) 📖 Manual Coverage Systems Covered Engine: Disassembly, assembly, diagnosis, repair, tuning, cooling system, lubrication system, fuel system, ignition system. Transmission: Manual transmission repair, clutch service, power take-off (if applicable). Drivetrain: Transfer case repair, front and rear axle service, driveshafts, universal joints. Suspension: Front and rear suspension repair, shock absorbers, springs, steering linkage. Brakes: Drum brake service, hydraulic system repair, parking brake. Electrical: Wiring diagrams, starter system, alternator/generator, battery, lighting, instrumentation, ignition system. Body: Body panel repair, doors, latches, windows, seats, interior trim, convertible top (if applicable). Procedures Included Maintenance: Scheduled maintenance, lubrication, fluid changes, filter replacements, tune-ups. Repair: Step-by-step repair procedures for all major mechanical and electrical components. Troubleshooting: Diagnostic charts and procedures for identifying and resolving common issues. Special Tools: Identification and usage of specialized tools required for specific repairs. Technical Depth Diagnostic Capability: Advanced diagnostics with detailed symptom-based troubleshooting guides. Rebuild Procedures: Complete engine, transmission, and axle rebuild instructions with torque specifications and clearances. Wiring Diagrams: Detailed, often color-coded, electrical schematics for all vehicle systems. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Print Quality Image Resolution: High-resolution scans for clear text and legible diagrams. Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: Hurricane (F-head inline-4) Engine Family: Willys Hurricane Displacement: 2199 cc (134.2 cubic inches) Bore X Stroke: 3-1/8" x 4-1/4" (79.4mm x 108mm) Compression Ratio: 6.9:1 Performance Horsepower Net: 72 hp @ 3600 RPM Torque Net: 127 lb-ft @ 1600 RPM Fuel System Fuel Delivery: Carter W-O (Wooler-Overland) YF or similar downdraft carburetor (typically 1-barrel). Fuel Type: Unleaded gasoline (octane rating as per original specifications). Lubrication Oil Type: SAE 10W-30 or 10W-40 (consult manual for specific viscosity based on temperature). Cooling System Coolant Type: Water and ethylene glycol mixture (50/50 ratio). 🔧 Transmission Standard Type: Warner T-90 3-speed manual transmission. Optional Overdrive: Not typically offered as standard, though aftermarket overdrive units may exist. Features Transfer Case: Dana Spicer 18 two-speed transfer case with 4WD engagement. Fluid Specifications Transmission Fluid: GL-4 Gear Oil (e.g., SAE 80W-90) Transfer Case Fluid: GL-4 Gear Oil (e.g., SAE 80W-90) 📐 Dimensions Exterior Wheelbase: 80 inches (2032 mm) Overall Length: 125 inches (3175 mm) Overall Width: 64 inches (1626 mm) Overall Height: 64.5 inches (1638 mm) (approx., to top of windshield frame) Weights Curb Weight: Approximately 2,800 - 3,000 lbs (1270 - 1361 kg) Gross Vehicle Weight Rating Gvwr: Approximately 3,800 lbs (1724 kg) Wheels And Tires Wheel Bolt Pattern: 5 on 5.5 inches (139.7 mm) Standard Tire Size: 6.00-16 or 6.50-16 (bias-ply) 🛡️ Safety Features Ratings Crash Test Data: No formal crash testing data available for this era of vehicle as per modern standards. Active Features Braking System: Four-wheel hydraulic drum brakes. Passive Features Seat Belts: Lap belts may be present, but were not always standard. The manual will detail their service. 💡 Technology Features Infotainment Audio System: Basic AM radio, often optional. No modern infotainment features. Driver Assistance Assist Features: None. This vehicle relies on driver skill. Connectivity Connectivity Options: None. 🔧 Maintenance Service Intervals Oil Change: Every 3,000 miles or 6 months (typical for the era, consult manual for precise intervals). Transmission Fluid Change: Every 12,000-24,000 miles or 12-24 months. Tune Up Schedule: Spark plugs, points, and condenser checked/replaced every 10,000-12,000 miles. Fluid Specifications Coolant Capacity: Approximately 10 quarts (9.5 Liters) with heater. Brake Fluid Type: DOT 3 Hydraulic Brake Fluid. Known Issues Engine Wear: Common wear on valve guides, piston rings, and bearings due to age and usage. Carburetor Issues: Carter W-O carburetor can be prone to fuel leaks or gumming if not maintained. Rust: Body rust is a prevalent issue, especially on floor pans, rocker panels, and fender wells. Electrical Gremlins: Aging wiring harnesses and components can lead to intermittent electrical problems. Suspension Wear: Worn bushings, ball joints (if applicable to specific configurations), and shock absorbers. 📚 Vehicle History Brand Heritage Jeep Legacy: Direct descendant of the World War II Willys MB 'Jeep', known for unparalleled off-road heritage. Model Evolution Cj Series: The CJ-3B succeeded the CJ-3A and was produced with minor updates for many...