The 1979 Jeep CJ5 holds a special place in the hearts of off-road enthusiasts. It represents a golden era of rugged simplicity and go-anywhere capability. Owning one is more than just owning a vehicle; it's owning a piece of automotive history. However, time takes its toll, and keeping a '79 CJ5 on the road, or trail, often requires sourcing and replacing parts. This comprehensive guide will navigate the world of 1979 Jeep CJ5 parts, providing valuable information for restoration, maintenance, and performance upgrades.
Introduction: The Enduring Appeal of the '79 CJ5
Restoring a Legend: A Deep Dive into 1979 Jeep CJ5 Parts
The 1979 Jeep CJ5 was part of the final years of the CJ5's long and celebrated production run. It retained the classic Jeep silhouette, a short wheelbase perfect for navigating tight trails, and a robust design that made it a favorite for customization. Whether you're restoring a neglected project, maintaining a daily driver, or building an off-road beast, understanding the specific parts for your '79 CJ5 is crucial. From identifying correct components to sourcing reliable replacements, this guide will be your resource.
Section 1: Identifying Your '79 CJ5 Parts – Decoding the Numbers
Before diving into catalogs or online marketplaces, it's essential to correctly identify the parts you need. Misidentification can lead to wasted time, money, and frustration. Here's how to ensure you're getting the right fit:
- VIN (Vehicle Identification Number): The VIN is your CJ5's unique identifier. Located on the driver's side dashboard or door jamb, the VIN provides information about the vehicle's year, model, engine, and assembly plant. Deciphering the VIN can confirm your Jeep's specifics and help you find year-specific parts. Many online VIN decoders are available.
- Engine Codes: The '79 CJ5 came with a few engine options, most commonly the AMC 258 cubic inch inline-six, or the AMC 304 or 360 cubic inch V8s. Knowing your engine type is crucial for ordering engine parts like filters, gaskets, and internal components. The engine code is usually stamped on the engine block.
- Transmission and Transfer Case Identification: The transmission and transfer case also have identification tags or stampings. This information is critical for ordering clutch kits, bearings, seals, and other drivetrain components. Common transmissions included the T-150 3-speed manual and the Turbo Hydra-Matic 400 automatic. The Dana 20 transfer case was a common choice.
- Axle Identification: Identifying your axles (Dana 30 front and AMC 20 rear were typical) is crucial for brake components, bearings, and gear upgrades. Axle identification is typically stamped on the axle housing.
- Parts Manuals and Catalogs: Original Jeep parts manuals and catalogs are invaluable resources. They provide detailed exploded views and part numbers, helping you visualize how components fit together and order the correct replacements. Reproduction manuals are readily available.
- Online Forums and Communities: Jeep CJ5 forums and online communities are treasure troves of information. Experienced owners can help you identify parts, offer advice, and share their restoration experiences.
Section 2: Essential 1979 CJ5 Parts Categories
The sheer number of parts required to maintain or restore a '79 CJ5 can be overwhelming. Here's a breakdown of the key categories:
- Engine Parts: This includes everything from air filters, spark plugs, and distributor caps to complete engine rebuild kits. Consider factors like engine type, driving style, and desired performance when selecting engine parts.
- Drivetrain Parts: This encompasses the transmission, transfer case, driveshafts, and axles. Drivetrain components are subject to significant wear and tear, so choosing high-quality replacements is crucial.
- Suspension Parts: Springs, shocks, bushings, and steering components fall into this category. Upgrading the suspension can improve ride quality, handling, and off-road performance.
- Brake Parts: Brake pads, rotors/drums, calipers/wheel cylinders, and brake lines are essential for safety. Inspect your brake system regularly and replace worn components promptly.
- Body Parts: Fenders, hoods, grilles, and body panels can be damaged by rust or accidents. Replacement body panels are available, but welding and bodywork skills may be required for installation.
- Electrical Parts: Wiring harnesses, lights, switches, and gauges make up the electrical system. Electrical problems can be frustrating to diagnose, so consider replacing old wiring harnesses with new ones.
- Interior Parts: Seats, carpets, dashboards, and door panels contribute to the comfort and appearance of the cabin. Replacement interior parts can refresh the interior and improve the driving experience.
Section 3: Sourcing 1979 CJ5 Parts – Where to Look
Finding the right parts for your '79 CJ5 can be a challenge, but several options are available:
- Online Retailers: Numerous online retailers specialize in Jeep parts. These retailers offer a wide selection of parts, competitive prices, and convenient shipping. Examples include Quadratec, Morris 4x4 Center, and Summit Racing.
- Local Auto Parts Stores: While not always the best source for CJ5-specific parts, local auto parts stores can provide common maintenance items like filters, spark plugs, and brake pads.
- Jeep Dealerships: Some Jeep dealerships may still carry parts for older models like the CJ5, especially maintenance items.
- Salvage Yards: Salvage yards can be a good source for used parts, especially body panels and interior components. Be prepared to inspect parts carefully for damage or wear.
- Online Marketplaces: Websites like eBay and Craigslist can be good sources for used or NOS (New Old Stock) parts. Exercise caution when buying from individuals and inspect parts thoroughly before purchasing.
- Jeep Forums and Communities: Many Jeep forums have classifieds sections where members sell parts. This can be a good way to find rare or hard-to-find components.
Section 4: Restoring vs. Upgrading – Defining Your Goals
Before buying parts, decide whether you're aiming for a complete restoration to original condition or a more modern upgrade.
- Restoration: A restoration aims to bring the CJ5 back to its original factory condition. This requires using original or reproduction parts that match the specifications of the '79 model.
- Upgrade: An upgrade involves replacing original parts with newer, more modern components. This can improve performance, reliability, and comfort. Common upgrades include electronic fuel injection, power steering, and disc brakes.
The choice between restoration and upgrade depends on your personal preferences, budget, and intended use of the CJ5.
Section 5: Common 1979 CJ5 Problems and Solutions
Knowing the common issues with '79 CJ5s can help you anticipate potential problems and plan your repairs:
- Rust: Rust is a common problem, especially in areas with harsh winters. Inspect the frame, body panels, and floorboards for rust. Repair or replace rusted sections as needed.
- Vacuum Leaks: Vacuum leaks can cause poor engine performance and difficulty starting. Inspect vacuum lines and connections for cracks or leaks.
- Electrical Problems: Old wiring can become brittle and corroded, leading to electrical problems. Consider replacing the wiring harness with a new one.
- Carburetor Issues: Carburetors can become clogged or worn over time. Rebuilding or replacing the carburetor can improve engine performance.
- Steering Play: Steering play is a common issue due to worn steering components. Replace worn tie rod ends, ball joints, and steering gear.
Section 6: Tips for Working on Your '79 CJ5
- Take Pictures: Before disassembling anything, take pictures of how the parts fit together. This will help you reassemble everything correctly.
- Label Everything: Label all parts and wires to avoid confusion during reassembly.
- Use the Right Tools: Using the correct tools will make the job easier and prevent damage to parts.
- Consult a Repair Manual: A repair manual provides detailed instructions and diagrams for working on your CJ5.
- Ask for Help: Don't be afraid to ask for help from experienced Jeep owners or mechanics.
Section 7: Addressing the AMC 20 Rear Axle Concerns
The AMC 20 rear axle in the '79 CJ5 is often considered a weak point, especially with larger tires or heavy off-road use. There are several ways to address this:
- Trussing and Strengthening: Kits are available to truss and strengthen the AMC 20 housing, making it more resistant to bending and breakage.
- Upgraded Axle Shafts: Replacing the stock axle shafts with stronger aftermarket shafts made from materials like 4340 chromoly can significantly improve the axle's durability.
- Axle Swaps: A more involved solution is to swap the AMC 20 for a stronger axle like a Dana 44 or a Ford 8.8. This requires fabrication and modification but offers a substantial increase in strength.
Section 8: Performance Upgrades for the '79 CJ5
If you're looking to improve the performance of your '79 CJ5, consider these upgrades:
- Electronic Fuel Injection (EFI): Converting to EFI can improve fuel efficiency, throttle response, and cold starting.
- Performance Exhaust: A performance exhaust system can increase horsepower and torque.
- Ignition Upgrade: An upgraded ignition system can provide a stronger spark and improve engine performance.
- Suspension Lift: A suspension lift can increase ground clearance and allow for larger tires.
- Disc Brake Conversion: Converting to disc brakes can improve braking performance and safety.
Conclusion: Keeping the Legend Alive
Restoring or maintaining a 1979 Jeep CJ5 is a rewarding experience. It's a chance to connect with automotive history and enjoy the unique capabilities of this iconic vehicle. By understanding the specific parts for your '79 CJ5, sourcing reliable replacements, and addressing common problems, you can keep the legend alive for years to come. Remember to prioritize safety, take your time, and enjoy the journey.
Price Table for 1979 Jeep CJ5 Parts
| Part Category | Part Description | Approximate Price Range | Notes |
|---|---|---|---|
| Engine | Air Filter | $10 - $30 | Varies by brand and material (paper, foam, etc.) |
| Spark Plugs (Set of 6 or 8) | $20 - $60 | Depends on brand and type (copper, iridium) | |
| Carburetor (Rebuilt) | $200 - $400 | Core charge may apply | |
| Water Pump | $40 - $80 | ||
| Radiator | $150 - $300 | Aluminum radiators can be more expensive but offer better cooling | |
| Drivetrain | Clutch Kit | $150 - $300 | Includes clutch disc, pressure plate, and throwout bearing |
| Transmission Rebuild Kit | $200 - $400 | Includes bearings, seals, and gaskets | |
| Transfer Case Rebuild Kit | $150 - $300 | Includes bearings, seals, and gaskets | |
| U-Joint (Each) | $15 - $30 | ||
| Suspension | Leaf Springs (Pair) | $200 - $500 | Price varies by lift height and spring rate |
| Shocks (Each) | $30 - $100 | Varies by brand and type (gas-charged, hydraulic) | |
| Bushings (Set) | $50 - $150 | Polyurethane bushings are more durable than rubber | |
| Brakes | Brake Pads (Front, Set) | $20 - $50 | |
| Brake Shoes (Rear, Set) | $20 - $50 | ||
| Brake Caliper (Each, Rebuilt) | $50 - $100 | Core charge may apply | |
| Brake Drum (Each) | $40 - $80 | ||
| Body | Fender (Each, Reproduction) | $150 - $300 | |
| Hood (Reproduction) | $200 - $400 | ||
| Floor Pan (Patch Panel) | $50 - $100 | ||
| Electrical | Wiring Harness (Complete) | $300 - $600 | |
| Headlights (Pair) | $30 - $60 | ||
| Taillights (Pair) | $20 - $40 | ||
| Interior | Seat Cover (Each) | $50 - $150 | |
| Carpet Kit | $100 - $200 | ||
| Other | Soft Top | $300 - $600 | |
| Hard Top | $500 - $1000+ | Prices vary significantly based on condition and manufacturer. |
Disclaimer: These prices are estimates and can vary depending on the brand, quality, and source of the parts. Shipping costs are not included. Always verify compatibility before purchasing.
Frequently Asked Questions (FAQ)
Q: Where can I find a complete list of original parts for my '79 CJ5?
A: Original Jeep parts manuals and catalogs are the best source. Reproduction manuals are readily available online.
Q: How do I know if a part is compatible with my '79 CJ5?
A: Check the part's description for compatibility information. Use your VIN to verify fitment. If unsure, consult with a Jeep parts specialist or experienced owner.
Q: Is it better to use original or aftermarket parts?
A: It depends on your goals. Original parts are best for restoration, while aftermarket parts can offer improved performance or durability.
Q: How can I prevent rust on my '79 CJ5?
A: Regularly wash and wax your CJ5, especially after off-roading. Apply rust inhibitor to exposed metal surfaces. Store your CJ5 indoors when possible.
Q: What are some common upgrades for the '79 CJ5?
A: Common upgrades include electronic fuel injection, power steering, disc brakes, and suspension lifts.
Q: The AMC 20 rear axle is known to be weak. Should I replace it?
A: If you plan to run larger tires or do heavy off-roading, consider upgrading or strengthening the AMC 20. If you only use the CJ5 for light trail use, it may not be necessary.
Q: What tools do I need to work on my '79 CJ5?
A: A basic set of hand tools, including wrenches, sockets, screwdrivers, and pliers, is essential. You may also need specialized tools like a torque wrench, socket set for the transmission and transfer case, and a brake spring tool.
Q: How can I find a reputable mechanic who specializes in Jeep CJ5s?
A: Ask for recommendations from other Jeep owners in your area. Check online reviews and ratings. Choose a mechanic with experience working on older vehicles.
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