The Jeep Comanche, a unique blend of Jeep's legendary off-road capability and a compact pickup truck bed, holds a special place in the hearts of automotive enthusiasts. The 1987 model year, in particular, represents a sweet spot for many, offering a balance of classic Jeep styling and improving reliability. However, keeping a 35+ year old vehicle on the road requires dedication and a solid understanding of where to find and how to use the right parts. This guide will delve into the world of 1987 Jeep Comanche parts, providing you with the knowledge and resources to keep your MJ running strong.
Introduction: Why Understanding '87 Jeep Comanche Parts Matters
Reviving a Legend: A Comprehensive Guide to 1987 Jeep Comanche Parts
The 1987 Jeep Comanche, also known as the MJ, was a product of Chrysler's acquisition of AMC. This year saw refinements to the Comanche's design and mechanicals, making it a desirable model for collectors and off-roaders alike. However, its age presents challenges. Finding the correct parts, understanding their compatibility, and knowing where to source them are crucial for successful repairs, restorations, and modifications. This guide aims to be your comprehensive resource for all things related to 1987 Jeep Comanche parts, ensuring you can keep this classic truck alive for years to come.
Section 1: Core Mechanical Components and Their Maintenance
The heart of any vehicle lies in its engine, transmission, and drivetrain. For the 1987 Comanche, you likely have a choice between a 2.5L AMC inline-four, a 2.8L GM V6, or the renowned 4.0L AMC inline-six.
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Engine Parts: Maintaining the engine involves routine tasks like oil changes, spark plug replacements, and filter changes (air, fuel, and oil). Finding these parts is generally straightforward, as many are still readily available. However, more specific engine components like pistons, connecting rods, and cylinder heads may require searching through aftermarket suppliers or salvage yards. Pay close attention to engine codes to ensure compatibility, especially if you have a later-year replacement engine. The 4.0L inline-six, in particular, is a popular choice for upgrades, so understanding the nuances of its different iterations is essential.
Transmission and Drivetrain: The '87 Comanche could be equipped with either a manual or automatic transmission. Identifying the specific transmission model is critical for ordering parts like filters, gaskets, and clutch kits. Common issues include worn synchronizers in manual transmissions and slipping in automatic transmissions. For the drivetrain, inspect the axles, differentials, and transfer case regularly. Look for signs of leaks, unusual noises, or excessive play. Replacement axle shafts, bearings, and seals are typically available, but sourcing a complete differential or transfer case might require some searching.
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Practical Advice: Before tackling any major mechanical repair, consult a repair manual specific to the 1987 Jeep Comanche. These manuals provide detailed diagrams, torque specifications, and step-by-step instructions. Invest in quality tools, as this will make the job easier and prevent damage to components.
Section 2: Suspension, Steering, and Brakes – Keeping Your Comanche on Track
The suspension, steering, and braking systems are vital for safety and handling. Maintaining these systems ensures a comfortable and safe driving experience.
Suspension: The '87 Comanche features a leaf-spring rear suspension and a coil-spring front suspension (on most models). Common issues include worn leaf springs, sagging coils, and blown shocks. Replacing these components can significantly improve ride quality and handling. Consider upgrading to aftermarket lift kits or heavy-duty springs for off-road use. Remember to inspect the bushings and ball joints for wear and tear.
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Steering: The steering system relies on a power steering pump, steering box, and tie rods. Leaks in the power steering system are common, often requiring replacement of hoses or the pump itself. Check the tie rod ends and ball joints for play, as worn components can lead to imprecise steering. Consider upgrading to a heavy-duty steering box if you plan on using your Comanche for serious off-roading.
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Brakes: The '87 Comanche typically came with disc brakes in the front and drum brakes in the rear. Regularly inspect the brake pads, rotors, drums, and brake lines. Replace worn components promptly to ensure optimal braking performance. Consider upgrading to stainless steel brake lines for improved durability and brake feel. Bleeding the brakes after any brake work is crucial to remove air from the system.
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Important Considerations: When replacing suspension or steering components, it's essential to get a wheel alignment afterward. A proper alignment will ensure even tire wear and optimal handling. For brake repairs, always use high-quality brake pads and rotors to ensure safe and reliable braking performance.
Section 3: Body Panels and Interior Components – Restoring the Look and Feel
Restoring the appearance of your '87 Comanche can be a rewarding project. However, finding body panels and interior components in good condition can be challenging.
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Body Panels: Rust is a common issue on older vehicles, particularly in areas prone to moisture and road salt. Finding rust-free body panels can be difficult, so salvage yards and online marketplaces are your best bet. Consider purchasing reproduction body panels if available, but be aware that fitment may require some modification. Pay attention to the condition of the bed, as it's often subjected to heavy use and abuse.
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Interior Components: The interior of a '87 Comanche can show signs of wear and tear over time. Replacing worn seat covers, carpets, and door panels can significantly improve the interior's appearance. Salvage yards are a good source for used interior parts. Consider upgrading to aftermarket seats or a modern stereo system for added comfort and convenience.
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Tips: When searching for body panels, be patient and persistent. Check multiple sources and be prepared to travel to pick up parts. For interior components, consider using a vinyl repair kit to fix minor tears and cracks. Cleaning and detailing the interior can also make a big difference.
Section 4: Electrical System and Lighting – Keeping the Lights On
The electrical system is the backbone of any vehicle, powering everything from the engine to the lights. Troubleshooting electrical issues can be challenging, but understanding the basics can help.
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Wiring Harness: The wiring harness in a '87 Comanche can become brittle and corroded over time. Inspect the wiring for cracks, breaks, and corrosion. Replace damaged wiring with new wire of the same gauge. Use dielectric grease on electrical connections to prevent corrosion.
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Lighting: The headlights, taillights, and turn signals are essential for safety. Replace burned-out bulbs promptly. Consider upgrading to LED headlights for improved visibility. Check the condition of the lenses and replace them if they are cracked or faded.
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Sensors and Modules: The '87 Comanche uses various sensors and modules to control the engine and other systems. Faulty sensors can cause a variety of problems, such as poor engine performance or a check engine light. Use a diagnostic scanner to identify faulty sensors and modules.
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Potential Challenges and Solutions: Electrical problems can be difficult to diagnose. Start by checking the fuses and relays. Use a multimeter to test for voltage and continuity. Consult a wiring diagram for the '87 Comanche to help trace circuits.
Section 5: Sourcing 1987 Jeep Comanche Parts
Finding the right parts is half the battle. Here's a breakdown of the best places to look:
- Online Retailers: Websites like Quadratec, Morris 4x4 Center, and Summit Racing offer a wide selection of Jeep parts, including some for the Comanche. eBay and Amazon can also be good sources, but be sure to check the seller's reputation and the part's compatibility before purchasing.
- Local Auto Parts Stores: Major auto parts chains like AutoZone, Advance Auto Parts, and O'Reilly Auto Parts can often order parts for older vehicles. They may not have everything in stock, but they can usually track down what you need.
- Salvage Yards: Salvage yards are a treasure trove of used parts. Search for local salvage yards that specialize in Jeep vehicles. Be prepared to do some digging and cleaning.
- Jeep Forums and Online Communities: Jeep forums and online communities are a great resource for finding parts and advice. Connect with other Comanche owners and ask for recommendations.
Table of 1987 Jeep Comanche Parts Prices
| Part Category | Part Description | Estimated Price Range | Source | Notes |
|---|---|---|---|---|
| Engine | 4.0L Inline-Six Remanufactured Engine | $1,500 - $3,000 | Online Retailers, Engine Rebuilders | Price varies based on core charge and included components. |
| Engine | Water Pump | $30 - $75 | Auto Parts Stores, Online Retailers | Choose a quality brand for longevity. |
| Transmission | AX-15 Manual Transmission Rebuild Kit | $150 - $300 | Online Retailers, Transmission Specialists | Includes bearings, seals, and synchronizers. |
| Drivetrain | NP231 Transfer Case Rebuild Kit | $100 - $200 | Online Retailers, Drivetrain Specialists | Includes seals, bearings, and chain. |
| Suspension | Leaf Spring (Rear) | $100 - $200/each | Online Retailers, Spring Manufacturers | Price varies based on load capacity. |
| Suspension | Shock Absorber | $30 - $100/each | Auto Parts Stores, Online Retailers | Consider gas-charged shocks for improved performance. |
| Steering | Power Steering Pump | $80 - $150 | Auto Parts Stores, Online Retailers | Check for core charge. |
| Brakes | Brake Pads (Front) | $20 - $50 | Auto Parts Stores, Online Retailers | Choose a quality brand for optimal braking performance. |
| Brakes | Brake Rotor (Front) | $40 - $80 | Auto Parts Stores, Online Retailers | Consider slotted or drilled rotors for improved cooling. |
| Body Panels | Fender (Used) | $50 - $200 | Salvage Yards, Online Marketplaces | Condition varies significantly. Inspect carefully for rust and damage. |
| Interior | Seat Cover | $50 - $150/seat | Online Retailers, Upholstery Shops | Price varies based on material and style. |
| Electrical | Headlight Assembly | $30 - $80 | Auto Parts Stores, Online Retailers | Consider LED upgrades for improved brightness. |
| Electrical | Starter Motor | $50 - $150 | Auto Parts Stores, Online Retailers | Check for core charge. |
| Fuel System | Fuel Pump | $50 - $150 | Auto Parts Stores, Online Retailers | Choose a quality brand for reliability. |
| Cooling System | Radiator | $100 - $300 | Auto Parts Stores, Online Retailers | Consider an aluminum radiator for improved cooling performance. |
| Exhaust System | Muffler | $50 - $150 | Auto Parts Stores, Online Retailers | Choose a stainless steel muffler for longevity. |
Note: Prices are estimates and may vary depending on the brand, condition, and location. It's always a good idea to shop around and compare prices before making a purchase.
Section 6: Common Problems and Their Solutions
The 1987 Comanche, like any older vehicle, is prone to certain common problems. Knowing these issues and their solutions can save you time and money.
- Rust: As mentioned earlier, rust is a major concern. Regularly inspect your Comanche for rust and address it promptly. Use rust converters and inhibitors to prevent further corrosion.
- Electrical Issues: Faulty wiring, corroded connections, and failing sensors can cause a variety of electrical problems. Use a multimeter and a wiring diagram to diagnose electrical issues.
- Vacuum Leaks: Vacuum leaks can cause poor engine performance and a rough idle. Inspect the vacuum hoses for cracks and leaks. Use a vacuum gauge to diagnose vacuum leaks.
- Leaking Seals: Oil leaks are common in older vehicles. Replace worn seals and gaskets to prevent leaks.
- Worn Suspension: Worn suspension components can lead to poor handling and a bumpy ride. Replace worn shocks, springs, and bushings to improve ride quality.
Section 7: Modifications and Upgrades
Many Comanche owners enjoy modifying and upgrading their trucks for improved performance, off-road capability, or appearance.
- Lift Kits: Lift kits are a popular modification for off-road enthusiasts. They provide increased ground clearance and allow for larger tires.
- Engine Swaps: Swapping in a more powerful engine, such as a 4.0L inline-six or a V8, can significantly improve performance.
- Axle Upgrades: Upgrading to stronger axles can improve durability and off-road capability.
- Armor: Adding armor, such as rock sliders and skid plates, can protect your Comanche from damage on the trail.
- Lighting Upgrades: Upgrading to LED headlights and off-road lights can improve visibility.
Conclusion: Keeping the Comanche Legacy Alive
The 1987 Jeep Comanche is a unique and capable truck that deserves to be preserved. By understanding the specific parts needed to maintain and repair these vehicles, you can ensure that these classic trucks remain on the road (and off) for many years to come. Whether you're restoring a Comanche to its original glory or building a capable off-road machine, having a solid understanding of parts availability and maintenance procedures is essential. The Comanche community is a strong one, so don't hesitate to reach out to fellow owners for advice and support. Embrace the challenge, enjoy the journey, and keep the Comanche legacy alive!
Frequently Asked Questions (FAQ)
- Q: Where can I find a reliable repair manual for my 1987 Jeep Comanche?
- A: Haynes and Chilton manuals are available online and at auto parts stores. Look for one specific to the 1987 Jeep Comanche.
- Q: What is the best engine to swap into a 1987 Jeep Comanche?
- A: The 4.0L inline-six is a popular and relatively straightforward swap, offering a significant power increase over the smaller engines.
- Q: How can I identify the specific transmission in my Comanche?
- A: Look for a tag or stamp on the transmission case with a model number. Consult a Jeep parts catalog or online resources for identification.
- Q: Are parts interchangeable between the Comanche and the Cherokee (XJ)?
- A: Many parts are interchangeable, particularly those related to the engine, transmission, suspension, and interior. However, body panels and bed components are unique to the Comanche.
- Q: What is the best way to prevent rust on my Comanche?
- A: Regularly wash and wax your Comanche. Apply rust inhibitors to vulnerable areas. Repair any rust spots promptly.
- Q: How often should I change the oil in my 1987 Jeep Comanche?
- A: Follow the manufacturer's recommended oil change interval, typically every 3,000 to 5,000 miles, depending on driving conditions.
- Q: Where can I find a community of 1987 Jeep Comanche owners?
- A: Online forums like ComancheClub.com and JeepForum.com are excellent resources for connecting with other Comanche enthusiasts.
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