Restoring a Legend: A Comprehensive Guide to 1987 Jeep Wrangler YJ Parts

Restoring a Legend: A Comprehensive Guide to 1987 Jeep Wrangler YJ Parts Truckparts.Truckstrend.com

The 1987 Jeep Wrangler YJ marks a pivotal moment in Jeep history. It replaced the beloved CJ series, ushering in a new era of squared headlights and, arguably, a more refined (though some might disagree!) driving experience. For enthusiasts, restoring or maintaining a 1987 YJ is a labor of love, and sourcing the right parts is crucial for success. This guide provides a comprehensive overview of 1987 Jeep Wrangler YJ parts, covering everything from essential replacements to performance upgrades.

Introduction: The Enduring Appeal of the 1987 YJ

Restoring a Legend: A Comprehensive Guide to 1987 Jeep Wrangler YJ Parts

The 1987 Jeep Wrangler YJ holds a special place in the hearts of off-roaders and classic car enthusiasts. It combines the rugged capability that Jeeps are known for with a more modern design compared to its predecessors. While the square headlights were initially controversial, they've become a defining characteristic of the YJ era. Owning a 1987 YJ often means tackling repairs, maintenance, and even full-blown restorations. Finding the correct parts is paramount to preserving the authenticity and performance of this iconic vehicle. Whether you're looking to replace worn-out components, upgrade for better performance, or simply maintain your YJ's originality, understanding the available parts is essential.

Section 1: Essential Engine Components

The heart of any vehicle is its engine. The 1987 YJ offered two engine options: the 2.5L AMC four-cylinder and the 4.2L AMC inline-six.

• 2.5L Four-Cylinder: This engine is known for its reliability and fuel efficiency. Common replacement parts include:

  • Distributor Cap and Rotor: Crucial for proper spark distribution.
  
  • Spark Plugs and Wires: Essential for efficient combustion.
  • Fuel Filter: Keeps the fuel system clean and prevents clogging.
  • Water Pump: Maintains proper engine cooling.
  • Thermostat: Regulates engine temperature.
  • Radiator: Dissipates heat from the engine.
  • Belts and Hoses: Susceptible to wear and tear, causing leaks or overheating.

• 4.2L Inline-Six: This engine offers more power and torque, making it a popular choice for off-roading. Common replacement parts include all the above, plus:

  • Carburetor: The 4.2L used a carburetor, which requires periodic cleaning and tuning. Rebuild kits are readily available.
  • Ignition Control Module (ICM): Controls the ignition timing.
  • Vacuum Lines: Essential for proper carburetor operation. Inspect for cracks and leaks.

Practical Advice: When replacing engine components, always use quality parts from reputable manufacturers. Consider replacing all related parts at the same time to prevent future issues. For example, when replacing a water pump, also replace the thermostat and radiator hoses.

Section 2: Transmission and Drivetrain

The transmission and drivetrain are responsible for transferring power from the engine to the wheels. The 1987 YJ typically came with a five-speed manual transmission (AX-5 or AX-15, depending on the engine) or a three-speed automatic transmission (TorqueFlite 999).

• Transmission:

  • Clutch Kit (Manual): Includes the clutch disc, pressure plate, and throw-out bearing.
  • Transmission Mount: Supports the transmission and reduces vibration.
  • Shift Linkage: Connects the shifter to the transmission.
  • Transmission Fluid: Proper fluid levels and type are crucial for smooth shifting.

• Transfer Case: The transfer case allows the YJ to switch between two-wheel drive and four-wheel drive.

  • Transfer Case Chain: Transfers power to the front and rear axles.
  • Transfer Case Fluid: Proper fluid levels and type are crucial for smooth operation.

• Driveshafts: Transmit power from the transmission/transfer case to the axles.

  • U-Joints: Connect the driveshaft to the transmission/transfer case and axles.
  • Slip Yoke: Allows the driveshaft to move as the suspension travels.

• Axles:

  • Axle Shafts: Transmit power from the differential to the wheels.
  • Wheel Bearings: Allow the wheels to rotate smoothly.
  • Differential: Allows the wheels to rotate at different speeds when turning.
  • Differential Fluid: Proper fluid levels and type are crucial for proper differential operation.

Important Considerations: Upgrading to a stronger transmission or transfer case is a common modification for YJs that see heavy off-road use. Consider the terrain you'll be driving on and the amount of power your engine produces when choosing replacement or upgrade parts.

Section 3: Suspension and Steering

The suspension and steering systems provide a comfortable ride and precise handling.

• Suspension: The 1987 YJ used leaf springs in the front and rear.

  • Leaf Springs: Provide support and control.
  • Shocks: Dampen suspension movement.
  • Bushings: Reduce vibration and noise.
  • U-Bolts: Secure the leaf springs to the axles.

• Steering:

  • Steering Gear Box: Amplifies steering input.
  • Power Steering Pump: Provides power assist for steering.
  • Tie Rods and Drag Link: Connect the steering gear box to the wheels.
  • Ball Joints: Allow the wheels to pivot.

How-To Guide: Replacing Leaf Spring Bushings

1. Safety First: Securely lift the vehicle and support it with jack stands.
2. Remove the Wheel: Remove the wheel from the side you're working on.
3. Disconnect the Shock Absorber: Disconnect the shock absorber from the axle.
4. Remove the U-Bolts: Carefully remove the U-bolts securing the leaf spring to the axle.
5. Remove the Leaf Spring: Lower the axle until the leaf spring is free.
6. Remove the Old Bushings: Use a bushing press or a hammer and socket to remove the old bushings.
7. Install the New Bushings: Press the new bushings into the leaf spring eyes.
8. Reinstall the Leaf Spring: Reinstall the leaf spring, U-bolts, shock absorber, and wheel.
9. Repeat for the Other Side: Repeat the process for the other side of the vehicle.

Tips: Use penetrating oil to loosen rusted bolts and nuts. Consider replacing all the leaf spring bushings at the same time for consistent performance.

Section 4: Body and Exterior Parts

The body and exterior parts contribute to the YJ's iconic look and protect the vehicle's components.

• Body Panels: Fenders, hood, doors, tub.
• Windshield: Prone to cracks and chips.
• Grille: A defining feature of the YJ.
• Bumpers: Provide protection in collisions.
• Lights: Headlights, taillights, turn signals.
• Mirrors: Side mirrors and rearview mirror.
• Soft Top/Hard Top: Provides weather protection.

Potential Challenges and Solutions: Finding original body panels in good condition can be challenging. Aftermarket replacements are available, but the quality can vary. Consider investing in a high-quality soft top or hard top for improved weather protection.

Section 5: Interior Components

The interior components provide comfort and convenience for the driver and passengers.

• Seats: Front seats and rear seat.
• Dashboard: Houses the instrument cluster and controls.
• Steering Wheel: Controls the steering.
• Gauges: Provide information about the vehicle's performance.
• Carpeting: Provides comfort and sound insulation.
• Door Panels: Cover the inside of the doors.
• Center Console: Provides storage space.

Benefits: Replacing worn-out interior components can significantly improve the comfort and appearance of your YJ. Consider adding aftermarket accessories such as a sound system, CB radio, or auxiliary lighting.

Section 6: Electrical System

The electrical system powers all the vehicle's electrical components.

• Battery: Provides power to start the engine and run electrical accessories.
• Alternator: Charges the battery and provides power to the electrical system while the engine is running.
• Starter: Cranks the engine to start it.
• Wiring Harness: Connects all the electrical components.
• Fuses and Relays: Protect the electrical system from overloads.

Actionable Insights: Regularly inspect the battery terminals for corrosion. Use a multimeter to check the alternator's output voltage. Consider upgrading to a higher-output alternator if you're running a lot of electrical accessories.

Price Table for 1987 Jeep Wrangler YJ Parts

Part Description	Approximate Price Range	Notes
Distributor Cap and Rotor (2.5L)	$15 - $30	Prices can vary based on brand and quality.
Spark Plugs (Set of 4) (2.5L)	$10 - $25	Choose plugs designed for the 2.5L engine.
Fuel Filter	$5 - $15	Replace regularly to maintain fuel system health.
Water Pump (2.5L)	$30 - $75	Consider replacing the thermostat at the same time.
Radiator (2.5L)	$80 - $200	Aftermarket options are available.
Carburetor Rebuild Kit (4.2L)	$30 - $60	Essential for restoring carburetor performance.
Clutch Kit (AX-5)	$100 - $250	Includes clutch disc, pressure plate, and throw-out bearing.
Transmission Mount	$20 - $40	Inspect regularly for wear and tear.
Transfer Case Chain	$50 - $150	Replace if stretched or damaged.
U-Joint (Driveshaft)	$15 - $40	Replace in pairs for best results.
Leaf Spring (Front or Rear)	$80 - $200 per spring	Prices vary based on lift height and brand.
Shock Absorber	$30 - $100 per shock	Choose shocks based on your driving style and terrain.
Ball Joint	$20 - $50 per joint	Replace in pairs for best results.
Windshield	$150 - $300	Installation costs are typically extra.
Soft Top	$200 - $600	Prices vary based on material and features.
Hard Top	$500 - $1500	Used prices can vary greatly depending on condition.
Seat Cover Set	$100 - $300	Protects and enhances the appearance of the seats.
Battery	$80 - $200	Choose a battery with the appropriate cold cranking amps (CCA) for your climate.
Alternator	$80 - $250	Consider a higher-output alternator if you're running a lot of electrical accessories.
Starter	$80 - $200	Remanufactured options are often available.

Disclaimer: Prices are approximate and can vary based on the retailer, brand, and condition of the part. This table is intended as a general guide only. Always check with multiple sources for the most accurate pricing.

Frequently Asked Questions (FAQ)

• Q: Where can I find 1987 Jeep Wrangler YJ parts?

  • A: You can find parts at local auto parts stores, online retailers specializing in Jeep parts (e.g., Quadratec, Morris 4x4 Center, Summit Racing), and salvage yards.

• Q: Are aftermarket parts as good as OEM parts?

  • A: Aftermarket parts can vary in quality. Research brands and read reviews before purchasing. Some aftermarket parts may even offer improvements over the original design.

• Q: How can I tell if a part is compatible with my 1987 YJ?

  • A: Check the part number against the manufacturer's specifications. Many online retailers have compatibility checkers that allow you to enter your vehicle's year, make, and model.

• Q: What are some common problems with the 1987 YJ?

  • A: Common problems include rust, carburetor issues (on the 4.2L), and worn suspension components.

• Q: Is it difficult to work on a 1987 YJ?

  • A: The 1987 YJ is relatively simple to work on compared to modern vehicles. However, some repairs may require specialized tools or knowledge.

• Q: Where can I find repair manuals for my 1987 YJ?

  • A: Haynes and Chilton manuals are readily available online and at auto parts stores. Factory service manuals can also be found, but they may be more expensive.

Conclusion: Preserving a Classic

Restoring or maintaining a 1987 Jeep Wrangler YJ is a rewarding experience. By understanding the available parts and taking the time to research your options, you can keep this iconic vehicle on the road for years to come. Remember to prioritize safety, use quality parts, and don't be afraid to ask for help from experienced Jeep enthusiasts. Happy Jeeping!