🏷️ Basic Information Identification Make: Jeep Model: CJ, SJ, XJ, MJ, J10, J20 Year: 1981 Codes Chassis Code Cj: CJ-5, CJ-7 Chassis Code Sj: SJ Wagoneer, SJ Grand Wagoneer, SJ J-Series Trucks (J10, J20) Chassis Code Xj: XJ Cherokee (early models) Chassis Code Mj: MJ Comanche (early models) 👋 Introduction Market Position Target Audience: Jeep owners, mechanics, restoration specialists, parts suppliers, and enthusiasts. Competitive Analysis Value Proposition: Provides essential part identification and ordering information, crucial for maintaining and restoring vintage Jeep vehicles, offering a cost-effective alternative to physical manuals or dealership inquiries. Key Features Instant Access: Instant download provides immediate access to critical parts information without shipping delays. Ease Of Use: Designed for ease of use with clear diagrams and manufacturer part numbers. 📋 Manual Details Coverage Areas Geographical Coverage: Primarily North American market, with parts applicable globally due to Jeep's international presence. Page Count Estimated Page Count: Extensive (exact number not specified, but implied to be comprehensive for multiple models). Manual Type Type: Parts Catalog / Parts List Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine assembly, fuel system, cooling system, exhaust system, transmission, transfer case, drivetrain components (axles, driveshafts). Chassis And Suspension: Frame, front and rear suspension components (springs, shocks, control arms), steering system, brakes (front and rear drums/discs), wheels and tires. Electrical System: Wiring harnesses, lighting, ignition system, starting and charging system, gauges, switches, fuse box. Body And Interior: Body panels (fenders, doors, hood, tailgate), bumpers, glass, convertible tops, interior trim, seats, dashboard components, hardware. Procedures Included Assembly Disassembly: Exploded diagrams facilitate identification and understanding of assembly/disassembly sequences for all listed parts. Technical Depth Part Identification: Includes manufacturer part numbers, descriptions, and detailed diagrams for every part. Diagram Utility: High-resolution, enlargeable exploded views for precise identification of even small components. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Printable on demand, allowing users to print specific pages as needed. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download - user's discretion for printing) ⚙️ Engine Specifications Primary Engine Engine Options Cj: AMC 151 I4 (2.5L), AMC 258 I6 (4.2L), AMC 304 V8 (5.0L) Engine Options Sj J10 J20: AMC 258 I6 (4.2L), AMC 360 V8 (5.9L), AMC 401 V8 (6.6L) Engine Options Xj: AMC 151 I4 (2.5L), AMC 258 I6 (4.2L) Performance Horsepower Torque Notes: Specific horsepower and torque figures vary by engine and tuning; manual provides part numbers for all components affecting performance. Fuel System Carburetor Injection Notes: Components for both carbureted (e.g., Carter, Motorcraft) and early electronic fuel injection (EFI) systems are likely covered, depending on specific model and year variants within the range. 🔧 Transmission Standard Manual Transmission Options: T150, T176, T4/T5 (for lighter models) Optional Automatic Transmission Options: TH400, TH350, TF999, TF727 Features Transfer Case Options: Dana 20, Dana 300 (for CJ), Selec-Trac (for XJ/MJ), Quadra-Trac (for SJ). 📐 Dimensions Exterior Wheelbase Variations: CJ-5 (approx. 84-93 in), CJ-7 (approx. 103.5 in), SJ Wagoneer/Cherokee (approx. 108.7 in), J-Series Trucks (approx. 129-131 in for J10, 131.5 in for J20), MJ Comanche (approx. 119.4 in). Weights Gross Vehicle Weight Rating Notes: GVWR varies significantly by model, from approx. 3,400 lbs (CJ) to over 6,000 lbs (J20), with detailed part sourcing for all weight-bearing components. 🛡️ Safety Features Ratings Safety Features Notes: Manual covers all original safety equipment including seat belts, roll bars (for CJ), brake components, and lighting systems. Active Features Braking System Types: Front disc, rear drum brakes standard on most models; some heavier duty trucks may have four-wheel disc options or more robust drum systems. Manual provides part numbers for all braking hardware. 💡 Technology Features Infotainment Audio System Options: Covers original radio components, speakers, and wiring. Aftermarket upgrades would utilize similar mounting points and electrical connectors identifiable via the manual. Driver Assistance ABS Availability: ABS was not standard or widely available on these models in 1981. Manual covers standard braking systems. Connectivity Wiring Harness Details: Detailed diagrams of wiring harnesses are crucial for diagnosing electrical issues and planning any aftermarket integrations. 🔧 Maintenance Service Intervals Maintenance Schedule Notes: While the manual is a parts catalog, the detailed breakdown of components implies the parts needed for scheduled maintenance (e.g., filters, spark plugs, belts). Fluid Specifications Engine Oil Type Notes: Typically 10W-30 or 10W-40 for gasoline engines, with specific capacities and filter part numbers available for each engine variant. Coolant Type Notes: Conventional green ethylene glycol coolant. Manual provides part numbers for radiators, hoses, and caps. Transmission Fluid Type Notes: ATF+3/+4 for automatics, gear oil (e.g., 80W-90) for manual transmissions and transfer cases. Manual includes part numbers for seals, gaskets, and filters. Known Issues Common Wear Items: Components commonly replaced include universal joints, brake pads/shoes, clutch components, exhaust systems, and ignition parts. Manual provides OE part numbers for all. Body Rust...