🏷️ Basic Information

Make:

Jeep

Model:

CJ-2A

Model Code:

CJ-2A

Production Years:

1945-1949

Chassis Code:

CJ-2A

👋 Introduction

Market Position:

The Jeep CJ-2A was one of the first civilian Jeeps, developed by Willys-Overland following World War II. It was positioned as a rugged, versatile utility vehicle for farmers, ranchers, and industrial use, bridging the gap between military utility and civilian practicality.

Competitive Analysis:

Competed with other light utility vehicles and trucks of the era, though its inherent off-road capability and ruggedness set it apart. It was a direct evolution of the military Willys MB. Key competitors were often farm tractors with more rudimentary functionality or heavy-duty trucks not suited for off-road work.

Key Features:

Spicer 18 Transfer Case with PTO provision, robust L-head 'Go Devil' engine, rugged ladder frame chassis, leaf spring suspension, 4WD capability, robust braking system, and a simple, durable design emphasizing functionality over comfort.

📋 Manual Details

Coverage Areas:

All Styles Covered

Page Count:

Hundreds of Pages

Manual Type:

Factory Service Repair Manual

Language:

English

Format:

Downloadable PDF

📖 Manual Coverage

Systems Covered:

Engine Mechanical, Fuel System, Cooling System, Ignition System, Exhaust System, Clutch, Transmission, Transfer Case, Drive Axles (Front & Rear), Steering System, Front Suspension, Rear Suspension, Braking System, Electrical System (Wiring Diagrams, Lighting, Instrumentation, Starting & Charging), Body & Frame, Chassis, Maintenance Procedures, Troubleshooting, Specifications

Procedures Included:

Complete diagnostic and repair procedures, routine maintenance, engine overhaul, transmission overhaul, differential repair, suspension component replacement, brake service, electrical troubleshooting, wiring harness repair, body panel alignment, chassis lubrication, and component adjustments.

Technical Depth:

Comprehensive factory-level technical information, including detailed disassembly and assembly instructions, torque specifications, diagnostic charts, exploded views, and wiring schematics.

📊 Manual Specifications

File Format:

PDF

Print Quality:

High-resolution, suitable for printing

Binding Type:

N/A (Downloadable PDF)

Paper Type:

N/A (Digital)

⚙️ Engine Specifications

Engine Type:

Inline 4-cylinder, L-head (Flathead)

Engine Code:

Willys L-134

Displacement:

134.2 cu in (2.2 L)

Bore X Stroke:

3.125 in x 4.375 in (79.4 mm x 111.1 mm)

Compression Ratio:

6.5:1

Horsepower:

60 bhp @ 3200 rpm

Torque:

105 lb-ft @ 1200 rpm

Fuel Type:

Gasoline

Carburetor:

Solex B26H / Carter WDO-4527

Fuel Pump:

Mechanical

Engine Oil Type:

SAE 20W-20 (or SAE 10W-30 for colder climates)

Engine Oil Capacity:

5 Quarts (4.7 Liters) with filter

🔧 Transmission

Transmission Type:

3-speed Manual

Transmission Model:

Spicer 3-44

Transfer Case Type:

2-speed, Part-time 4WD

Transfer Case Model:

Spicer 18

Transfer Case Pto:

Provision for Power Take-Off (PTO) unit on passenger side

Transmission Fluid Type:

Gear oil SAE 80W

Transfer Case Fluid Type:

Gear oil SAE 80W

Differential Fluid Type:

Gear oil SAE 80W-90

📐 Dimensions

Wheelbase:

80 inches (2032 mm)

Length:

131.75 inches (3346 mm)

Width:

63.0 inches (1600 mm)

Height:

67.5 inches (1715 mm) (to top of windshield frame, top optional)

Ground Clearance:

8.75 inches (222 mm)

Curb Weight:

2,370 lbs (1075 kg)

Gross Vehicle Weight Rating Gvwr:

3,400 lbs (1542 kg)

Wheel Bolt Pattern:

5x5.5 inches (139.7 mm)

Standard Tire Size:

6.00 x 16

Standard Wheel Size:

16 inch

🛡️ Safety Features

Safety Ratings:

Not tested by modern safety standards; designed for durability and mechanical safety rather than crashworthiness. Focus on robust chassis and predictable handling for its era.

Active Features:

Four-wheel drive, robust braking system (drum brakes on all wheels), low center of gravity for its class.

Passive Features:

Durable steel body and frame construction. Seat belts were not standard equipment in early CJ-2A models and were typically an aftermarket addition.

💡 Technology Features

Infotainment System:

None (basic instrumentation: speedometer, oil pressure, ammeter, water temperature)

Voltage:

6-volt DC

Ignition System:

Distributor type (e.g., Autolite, Delco-Remy)

Lighting:

Basic headlights, taillights, brake lights, and turn signals (often optional).

🔧 Maintenance

Engine Oil Change:

Every 3,000 miles or 6 months, whichever comes first

Transmission Fluid Change:

Every 12,000 miles or 12 months

Transfer Case Fluid Change:

Every 12,000 miles or 12 months

Differential Fluid Change:

Every 12,000 miles or 12 months

Chassis Lubrication:

Every 1,000 miles or 3 months (grease points)

Coolant Type:

Water/Ethylene Glycol mix (50/50)

Brake Fluid Type:

DOT 3 (original specification may vary, consult manual for specific caliper/wheel cylinder type)

Known Issues:

Oil leaks (especially from valve cover and oil pan), carburetor issues (clogging, adjustment), clutch wear, differential whine, electrical system corrosion and shorts, braking system component wear (drums, shoes, lines), suspension component wear (bushings, shackles).

Common Repairs:

Engine gasket replacement, carburetor rebuild or replacement, clutch replacement, brake system overhaul, front axle kingpin service, universal joint replacement, shock absorber replacement.

📚 Vehicle History

Brand Heritage:

Jeep's heritage is deeply rooted in military service, with the Willys MB becoming an iconic symbol of American ruggedness and capability during World War II. The CJ (Civilian Jeep) series continued this legacy into the post-war era.

Model Evolution:

The CJ-2A was the first mass-produced civilian Jeep. It evolved from the military Willys MB, featuring civilian-oriented updates like a tailgate, side-mounted spare tire, and a standard three-speed manual transmission. It was succeeded by the CJ-3A.

Production Location:

Toledo, Ohio, USA

Production Volume:

Approximately 207,000 units produced between 1945 and 1949.

🏆 Awards & Recognition

Recognitions:

Recognized as a foundational vehicle in the development of the SUV and off-road vehicle segment. Iconic status in automotive history and popular culture.