🏷️ Basic Information Identification Make: Dodge Model: Ram 50 Year: 1991 Codes Chassis Code: MN150/MN200 Series 👋 Introduction Market Position Positioning: A robust and reliable compact pickup truck that bridged the gap between smaller imports and larger domestic trucks. Targeted at tradespeople, small businesses, and individuals seeking a versatile and economical utility vehicle. Competitive Analysis Competitors: Ford Ranger, Chevrolet S-10, Toyota Pickup, Nissan Hardbody, Mazda B-Series Key Features Features: Available in 2WD and 4WD, choice of gasoline engines, sturdy construction, practical bed configurations, reliable powertrain options. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Maintenance, Diagnosis, Troubleshooting Page Count Estimated Page Count: Varies by specific dealership publication, typically 1000+ pages for a complete set Manual Type Type: Factory Service Manual (FSM) / Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, block, crankshaft, pistons, connecting rods, lubrication, cooling system, fuel system, exhaust system, emissions control Engine Control: Engine control module (ECM), ignition system, starting system, charging system, fuel injection system Transmission Manual: Clutch system, manual transmission assembly, shift linkage, transfer case (if applicable) Transmission Automatic: Automatic transmission assembly, torque converter, transmission control system Drivetrain: Drive shaft, universal joints, rear axle assembly, differential, front axle (if 4WD), CV joints Suspension Steering: Front suspension (independent or solid axle depending on variant), rear suspension (leaf springs), steering column, power steering system, steering gear Brakes: Front brake system (disc or drum), rear brake system (drum), parking brake system, hydraulic system, ABS (if equipped) Wheels Tires: Wheel alignment, tire specifications, wheel replacement Body Exterior: Body panels, doors, hood, tailgate, glass, mirrors, exterior trim, bumpers Body Interior: Seating, interior trim, dashboard, instrument panel, airbags (Supplemental Restraint System - SRS), seat belts, door locks, power windows HVAC: Air conditioning system, heater, ventilation system Electrical System: Battery, charging system, starting system, lighting, fuses, relays, wiring harnesses, multiplex communication (if applicable) Instrumentation Controls: Instrument cluster, gauges, warning lights, switches, controls Wiper Washer: Wiper system, washer system Audio Visual: Radio, speakers, antenna Cruise Control: Cruise control system diagnosis and repair Immobilizer: Engine immobilizer system (if equipped) Procedures Included Maintenance Schedule: Routine maintenance procedures, service intervals, fluid level checks, filter replacements Diagnosis Troubleshooting: Diagnostic trouble codes (DTCs), symptom-based troubleshooting charts, wiring diagrams for fault finding Repair Rebuild: Step-by-step instructions for component removal, disassembly, inspection, repair, assembly, and installation Specifications: Torque specifications, clearances, fluid capacities, pressure specifications, electrical values Wiring Schematics: Complete electrical wiring diagrams for all vehicle systems Technical Depth Depth: Comprehensive, ranging from basic maintenance and fluid changes to complete engine and transmission overhauls, electrical system diagnosis, and body repair. 📊 Manual Specifications File Format Format: PDF Print Quality Printability: High-resolution, printable pages Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine 1: 2.4L 4G63 Inline-4 (Mitsubishi origin) Engine 1 Displacement: 2351 cc (2.4 Liters) Engine 1 Horsepower: Approx. 105-113 hp @ 4500-5000 rpm (depending on specific tune and emissions equipment) Engine 1 Torque: Approx. 135-145 lb-ft @ 2500-3000 rpm Engine 1 Fuel System: Electronic Fuel Injection (EFI) Optional Engine Engine 2: 3.0L 6G72 V6 (Mitsubishi origin) Engine 2 Displacement: 2972 cc (3.0 Liters) Engine 2 Horsepower: Approx. 140-145 hp @ 4800-5000 rpm Engine 2 Torque: Approx. 160-170 lb-ft @ 2500-3000 rpm Engine 2 Fuel System: Electronic Fuel Injection (EFI) 🔧 Transmission Standard Standard Transmission: 5-Speed Manual Transmission Optional Optional Transmission: 4-Speed Automatic Transmission Features Transfer Case: Available with a 2-speed transfer case for 4WD models 📐 Dimensions Exterior Wheelbase Std Cab: Approx. 109.4 inches (2780 mm) Wheelbase Extended Cab: Approx. 125.2 inches (3180 mm) Bed Length Std: Approx. 73.4 inches (1865 mm) Bed Length Long: Approx. 87.4 inches (2220 mm) Weights Curb Weight Approx: 3000 - 3700 lbs (1360 - 1680 kg) depending on configuration 🛡️ Safety Features Ratings NHTSA Ratings: Not specifically rated by NHTSA under modern standards. Typical for its era. Active Features Active Safety: Standard seat belts, optional ABS on some models Passive Features Passive Safety: Collapsible steering column, reinforced cabin structure (typical for light trucks of the era) 💡 Technology Features Infotainment Infotainment System: Basic AM/FM radio, optional cassette player. Aftermarket head units are common upgrades. Driver Assistance Driver Assistance: Limited to optional ABS on rear wheels for some models and model years. Connectivity Connectivity: No factory-integrated connectivity features as understood today. Basic wiring for radio antenna and speakers. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 miles or 3 months (typical for the era, refer to manual for exact specification). Transmission Fluid Change Interval: Every 30,000-60,000 miles, depending on usage and transmission type (refer to manual). Spark Plugs: Inspect every 30,000 miles, replace as needed. Timing Belt: For 2.4L 4G63 engine, inspect at intervals and replace typically around 60,000-90,000 miles. Critical to follow manual. (Note: Some 4G63 variants are belt-driven, others...