2004 Jeep Rubicon Unlimited For Sale: Unearthing a Modern Classic

2004 Jeep Rubicon Unlimited For Sale: Unearthing a Modern Classic jeeps.truckstrend.com

For enthusiasts of legendary off-road capability fused with enhanced practicality, the phrase "2004 Jeep Rubicon Unlimited For Sale" rings with a particular allure. While the factory Rubicon Unlimited (often referred to as the LJ Rubicon) was predominantly a 2005-2006 model, the 2004 model year marked the pivotal introduction of the longer-wheelbase "Unlimited" (LJ) variant itself. Thus, finding a 2004 model specifically advertised as a "Rubicon Unlimited" can refer to a highly sought-after, potentially upgraded, or exceptionally rare early-production vehicle that embodies the best of both worlds: the extended practicality of the LJ combined with the unparalleled off-road prowess of the Rubicon package.

This article serves as a comprehensive guide for anyone considering the purchase of this iconic vehicle. We’ll delve into what makes the LJ so special, the unique features of the Rubicon trim, what to look for when buying, and practical advice to ensure you secure a worthy piece of Jeep history.

2004 Jeep Rubicon Unlimited For Sale: Unearthing a Modern Classic

The Legend of the LJ: What Makes the 2004 Rubicon Unlimited Special?

At its core, the 2004 Jeep Rubicon Unlimited, whether a factory-spec LJ (if an early model existed with Rubicon features, or an upgraded Sport/X Unlimited) or the later, more common 2005-2006 LJ Rubicon, represents a pinnacle in the TJ Wrangler’s evolution. It masterfully blends the rugged simplicity and immense off-road prowess of the TJ platform with a significant improvement in utility and comfort.

The "Unlimited" (LJ) Advantage:
The "Unlimited" designation signifies a wheelbase stretched by 10 inches compared to the standard TJ Wrangler (from 93.4 to 103.4 inches). This seemingly modest increase yields dramatic benefits:

• Increased Cargo Space: A massive 13 inches of additional cargo room behind the rear seats, transforming the Wrangler from a weekend warrior to a genuine adventure vehicle capable of carrying more gear, camping equipment, or even a dog crate.
• Improved Rear Legroom: While still not limousine-like, the extra length provides noticeably more comfortable seating for rear passengers, making longer trips more bearable.
• Enhanced Ride Quality: The longer wheelbase contributes to a smoother, more stable ride, especially at highway speeds, reducing the notorious "TJ bounce."



• Better Towing Stability: For those who occasionally tow small trailers, the longer wheelbase aids in stability.

The "Rubicon" Package: Born to Conquer:
Introduced in 2003 for the standard TJ and then applied to the Unlimited in 2005 (for the factory LJ Rubicon), the Rubicon package transformed the Wrangler into an out-of-the-box off-road beast. Its key features include:

• Dana 44 Axles (Front and Rear): Significantly stronger than the standard Dana 30 front and Dana 35 rear axles, these are crucial for serious off-roading and larger tires.
• Tru-Lok Air-Actuated Lockers: Electronically controlled, selectable front and rear differential lockers provide maximum traction by forcing both wheels on an axle to spin at the same rate, even if one is off the ground.
• NV241 Rock-Trac Transfer Case: Boasting an incredibly low 4:1 low-range gear ratio (compared to the standard 2.72:1), this transfer case provides phenomenal torque multiplication for crawling over obstacles with precision and control.
• Disconnectable Front Sway Bar: Allows for greater articulation of the front suspension on challenging terrain, improving wheel contact and traction.
• Heavy-Duty Skid Plates: Factory protection for the fuel tank and transfer case.



• 31-inch Goodyear MT/R Tires: Aggressive mud-terrain tires on 16-inch alloy wheels, providing excellent grip off-road right from the dealership.

When combined, the longer wheelbase of the Unlimited and the specialized equipment of the Rubicon package create a truly formidable and versatile vehicle that remains highly sought after two decades later.

Key Features and Specifications to Look For

Understanding the core specifications of the 2004 Jeep Rubicon Unlimited (or an LJ with Rubicon-level features) is crucial for a potential buyer:

• Engine: 4.0L PowerTech I6 (Inline-6) – Renowned for its legendary reliability, torque, and simplicity. This engine is a workhorse.
• Transmissions:
  • Automatic: 4-speed 42RLE (common on Unlimiteds).
  • Manual: 5-speed NV3550 (less common on Unlimiteds, but highly desirable for off-roading purists).
• Axles: Front & Rear Dana 44 (standard on Rubicon).
• Transfer Case: NV241 Rock-Trac (4:1 low range, standard on Rubicon).
• Suspension: Quadra-Coil live axle suspension.
• Wheelbase: 103.4 inches (vs. 93.4 inches for standard TJ).
• Overall Length: Approximately 167 inches.
• Fuel Capacity: 19 gallons.
• Tires: Stock 31-inch Goodyear MT/R (or similar if upgraded).
• Tops: Available with a soft top, a hardtop, or both.

Why Buy a 2004 Rubicon Unlimited Today?

Despite being nearly two decades old, the 2004 Rubicon Unlimited (or LJ Rubicon) offers compelling reasons for purchase:

1. Unmatched Off-Road Capability: Even stock, it’s one of the most capable production off-road vehicles ever made. The lockers and low gearing make short work of challenging trails.
2. Versatility: The extra cargo space and improved ride make it a more practical daily driver or adventure vehicle than a standard TJ, without sacrificing its core identity.
3. Modifiability & Aftermarket Support: The TJ platform has an enormous aftermarket. Lift kits, armor, engine upgrades, and countless accessories are readily available, allowing for endless customization.
4. Exceptional Resale Value: LJs, especially Rubicons, hold their value incredibly well and have even seen appreciation in recent years due to their rarity and desirability. They are an investment in fun that often pays off.
5. "Analog" Driving Experience: In an era of increasingly complex, computer-controlled vehicles, the LJ offers a raw, engaging, and direct driving experience that connects you directly to the road (or trail).
6. Nostalgia and Collector Appeal: As the last iteration of the classic, round-headlight Wrangler before the JK generation, the LJ represents the end of an era and is quickly becoming a collector’s item.

Important Considerations Before Purchasing: A Buyer’s Guide

Buying a 20-year-old vehicle, especially one designed for rugged use, requires diligence.

• Rust is the Enemy: This is arguably the most critical inspection point.
  • Frame: Thoroughly inspect the frame, particularly around the control arm mounts, skid plate mounts, and rear sections (behind the rear wheels, above the gas tank). Look for flaking, bubbling, or actual holes. Frame rust is expensive and difficult to repair properly.
  • Body: Check the rocker panels, wheel wells, door hinges, and floor pans.
• Maintenance History: Demand detailed service records. A well-maintained Jeep will last significantly longer. Look for evidence of regular oil changes, coolant flushes, and differential fluid changes.
• Engine Health (4.0L I6):
  • Listen for unusual noises (knocks, ticks).
  • Check for oil leaks (rear main seal is common but not necessarily critical if minor; oil filter adapter gasket is also common).
  • Look for coolant leaks (water pump, radiator, hoses).
  • Check for a cracked exhaust manifold (ticking noise when cold).
• Transmission & Transfer Case:
  • Automatic (42RLE): Check fluid condition (should be red, not brown or burnt). Test shifting for smoothness, especially from a stop and under load.
  • Manual (NV3550): Check clutch feel and ensure smooth shifts without grinding.
  • Transfer Case (NV241): Ensure it shifts easily into 2H, 4H, and 4L. Test the 4:1 low range if possible.
• Axles & Lockers:
  • Check for fluid leaks around the differential covers and pinion seals.
  • Crucially for a Rubicon: Verify the Tru-Lok lockers engage and disengage. Listen for the air compressor activating. This can be tricky without an actual off-road test.
• Suspension & Steering:
  • Inspect all bushings, ball joints, tie rod ends, and track bar for wear. Worn components can lead to "death wobble."
  • Check shocks for leaks.
  • Look for signs of abuse if it’s been heavily off-roaded (bent components, cracked welds).
• Soft Top/Hard Top: Inspect the condition of the top, windows (clarity and zippers), and seals for leaks or damage.
• Previous Modifications: Assess any aftermarket parts. Were they installed correctly? Are they quality components? Sometimes, poorly done modifications can be a red flag.
• Test Drive: Listen for unusual noises (driveline clunks, bearing hums), check steering precision, brake performance, and ensure all gauges and electrical components work.

Tips for Finding and Securing Your LJ

• Patience is Key: LJ Rubicons are highly sought after. Finding the right one in good condition might take time.
• Expand Your Search: Look beyond local listings. Websites like Facebook Marketplace, Craigslist, dedicated Jeep forums (e.g., WranglerForum, JeepForum), and specialty 4×4 dealerships are good places to start.
• Set a Realistic Budget: The initial purchase price is just the beginning. Factor in potential maintenance, upgrades, and insurance.
• Get a Pre-Purchase Inspection (PPI): Unless you’re a seasoned mechanic, have a trusted independent Jeep or 4×4 specialist perform a thorough inspection before buying. This can save you thousands down the road.
• Ask Detailed Questions: Don’t be afraid to ask about the vehicle’s history, how it was used (daily driver vs. dedicated trail rig), maintenance schedule, and any known issues.
• Verify VIN & Ensure the VIN matches the title and that the title is clean.

Potential Challenges and Solutions

• High Price Tag: LJs, especially Rubicons, command a premium.
  • Solution: Budget carefully, be prepared to pay for quality, or consider one with minor cosmetic flaws that can be fixed.
• Finding an Unmolested Example: Many LJs have been modified. Finding a stock or lightly modified one can be tough.
  • Solution: Broaden your search radius, or be prepared to undo or improve previous modifications.
• Rust Repair: If you find a good deal on a rusty LJ, remember that frame repair is complex and costly.
  • Solution: Seek professional welding/fabrication shops, or consider it a project vehicle if you have the skills.
• Fuel Economy: It’s a heavy, boxy, V6-powered (or I6) brick with aggressive tires. Don’t expect hybrid MPG.
  • Solution: Accept it. Focus on proper maintenance to ensure optimal engine efficiency.
• Parts Availability: While excellent for the TJ platform, some LJ-specific parts (like body panels) can be harder to find than standard TJ parts.
  • Solution: Most mechanical parts are shared with the TJ, and the aftermarket is robust. Specialty LJ parts might require more searching or custom fabrication.

Price Table: 2004 Jeep Rubicon Unlimited (or Equivalent LJ with Rubicon Features)

Please note: Prices are highly variable based on mileage, condition (especially rust!), maintenance history, modifications, location, and demand. These are general ranges for private party sales in good to excellent condition.

Condition Category	Typical Mileage Range	Estimated Price Range (USD)	Key Considerations Affecting Price
Fair / Good	150,000 – 250,000+	$12,000 – $18,000	Minor to moderate rust, some mechanical issues, cosmetic wear, potentially higher mileage, may require immediate repairs.
Very Good	80,000 – 150,000	$18,000 – $25,000	Minimal rust, well-maintained, good mechanical condition, minor cosmetic flaws, may have tasteful modifications.
Excellent / Collector	Under 80,000	$25,000 – $40,000+	Little to no rust, meticulous maintenance records, near-perfect mechanicals, original or tastefully upgraded, rare finds.
Highly Modified	Varies	$20,000 – $50,000+	Price depends heavily on quality of modifications (e.g., engine swaps, full suspension kits, custom axles). Can be higher than collector grade if built professionally.

Frequently Asked Questions (FAQ)

Q1: Is the 2004 Jeep Rubicon Unlimited truly rare?
A1: The 2004 model year was the introduction of the Unlimited (LJ) wheelbase. The factory Rubicon trim for the Unlimited (the LJ Rubicon) was officially introduced in 2005 and continued through 2006. So, a true factory 2004 Rubicon Unlimited would be exceptionally rare, if it exists at all (perhaps a very early production run, or specific market release). More commonly, a "2004 Rubicon Unlimited" for sale refers to a 2004 LJ (Sport or X) that has been upgraded with Rubicon-level components, or a mis-advertised 2005-2006 LJ Rubicon. Either way, the LJ wheelbase combined with Rubicon features is highly sought after and relatively rare compared to standard TJs.

Q2: What’s the main difference between a TJ and an LJ?
A2: The LJ (Unlimited) is essentially a TJ (Wrangler) with a 10-inch longer wheelbase. This adds significant cargo space, improves rear passenger legroom, and provides a smoother ride. Mechanically, they are very similar, sharing the same engine, transmissions, and many other components.

Q3: Is the 4.0L engine reliable?
A3: Absolutely. The 4.0L PowerTech I6 engine is legendary for its durability and longevity, often reaching 200,000-300,000 miles or more with proper maintenance. Common issues are usually minor (oil leaks, cracked exhaust manifolds) rather than catastrophic.

Q4: What is "death wobble" and can it be fixed?
A4: "Death wobble" is a violent, uncontrollable shaking of the front end that typically occurs at highway speeds after hitting a bump. It’s caused by worn or loose steering and suspension components (e.g., track bar, tie rod ends, ball joints, control arm bushings). It can absolutely be fixed by identifying and replacing the worn parts, often with upgraded heavy-duty components.

Q5: Can a 2004 Rubicon Unlimited be a daily driver?
A5: Yes, many people use LJs as daily drivers. The longer wheelbase improves highway manners compared to a short-wheelbase TJ. However, it’s still a Wrangler: expect a firm ride, higher noise levels, and less refined handling than a modern SUV.

Q6: What kind of fuel economy can I expect?
A6: Don’t expect great fuel economy. A 4.0L LJ typically gets in the range of 14-18 MPG, depending on tires, gearing, and driving style. Heavy modifications (lifts, larger tires, heavy bumpers) will likely reduce this further.

Q7: Are parts hard to find for a 2004 LJ?
A7: No. Because the LJ shares most of its mechanical components with the highly popular TJ Wrangler (1997-2006), parts availability is excellent, both from OEM sources and the vast aftermarket. LJ-specific body panels or interior pieces might be slightly harder to source, but not impossible.

Conclusion

The 2004 Jeep Rubicon Unlimited, whether a rare original or an upgraded LJ, stands as a testament to Jeep’s enduring legacy of capability and adventure. It offers a unique blend of off-road prowess, increased practicality, and an undeniable classic appeal that few other vehicles can match. While buying a two-decade-old vehicle requires careful inspection and a clear understanding of its potential quirks, the rewards of owning such a versatile and iconic machine are immense. For the discerning enthusiast, finding a "2004 Jeep Rubicon Unlimited For Sale" isn’t just about purchasing a vehicle; it’s about investing in a piece of automotive history and unlocking countless future adventures.