FORD TRUCK XL1Z4602BA Rear Drive Shaft Standard Suspension 431-04219B 4.6L

( Brand: Ford Truck ), ( Manufacturer Part Number: XL1Z4602BA ), ( Model: EXPEDITON ), ( Part Type: Driveshaft Suspension ), ( Conditions Options: At, Rwd ), ( Genuine Oem: Yes ), ( Ipn: 431-04219b ), ( Year: 2001 )

Review FORD TRUCK Rear Drive Shaft 4.6l Standard Duty Suspension fits EXPEDITION 4WD 1999–2002

The **Ford XL1Z4602BA Rear Drive Shaft (4WD, 4.6L, Standard Suspension)** is a critical component of the **1999 2002 Ford Expedition**, designed to deliver reliable power transfer and smooth operation in both on-road and light off-road conditions. Part of the **4WD system**, this rear drive shaft connects the transfer case to the rear axle, ensuring seamless torque delivery to the wheels while maintaining optimal alignment and balance. Engineered for the **4.6L Triton V8** engine configuration, this drive shaft is built to withstand the high torque output of this powerful powertrain, providing durable performance under heavy loads, towing, or rugged terrain. The **standard suspension setup** of the Expedition featuring coil springs, shocks, and a solid rear axle requires a drive shaft that remains flexible yet structurally sound, allowing for natural articulation without binding or excessive wear. Constructed from high-strength steel, this shaft is precision-balanced to minimize vibration, ensuring a quieter, more comfortable ride while preserving driveline integrity. Whether navigating city streets, highway cruising, or occasional off-road adventures, this drive shaft plays a vital role in maintaining the Expedition s **four-wheel-drive capability**, making it an essential replacement part for owners seeking to restore or upgrade their vehicle s drivetrain. Proper installation and periodic inspection are recommended to ensure longevity and optimal functionality.

### Pros and Cons of Buying a 1999-2002 Ford Expedition (XL1Z4602BA, Rear Drive Shaft, 4WD, 4.6L, Standard Suspension)

1. **Reliability of the 4.6L Modular V8 Engine**

The 4.6L engine (commonly referred to as the "Modular" engine) is known for its durability and longevity when properly maintained. With regular oil changes and basic upkeep, these engines can easily exceed 200,000 miles. They are also relatively easy to work on compared to some other large V8s.

2. **Strong Towing and Hauling Capability**

The Expedition s 4WD system and 4.6L engine provide solid towing power (up to around 6,000 7,000 lbs with proper equipment), making it suitable for trailering, off-roading, or heavy-duty tasks. The rear-drive shaft setup (as opposed to an AWD system) is often preferred by off-roaders for its simplicity and robustness.

3. **Spacious Interior and Practicality**

The Expedition is a full-size SUV with ample cargo space (up to 80 cubic feet) and seating for seven passengers. The interior is roomy, with a comfortable ride for daily driving, making it ideal for families or those needing extra space.

4. **Availability of Parts and Mechanics**

As a Ford from the late '90s to early 2000s, parts are widely available, and mechanics familiar with the platform are common. This makes repairs and maintenance more accessible and cost-effective compared to newer or less common vehicles.

5. **Standard Suspension is Simple and Affordable**

The standard suspension (leaf springs in the rear, coil springs in the front) is straightforward and less expensive to repair than more advanced systems. While it may not be as smooth as modern suspensions, it is durable and can handle rough roads or light off-roading.

6. **4WD System is Proven**

The 4WD system on these Expeditions is a part-time system (low-range gearing is available), which is reliable for occasional off-roading or snow driving. It s not as sophisticated as modern AWD systems but is effective for its intended use.

7. **Potential for Modifications and Upgrades**

The Expedition s platform allows for various upgrades, such as lift kits, aftermarket suspension components, or performance modifications. The 4.6L engine can also be tuned for better power, though this requires some mechanical knowledge.

8. **Lower Purchase Price Compared to New or Modern SUVs**

Used Expeditions from this era are significantly cheaper than new or even newer used SUVs, offering great value for the space and capability they provide.

---

1. **Aging and Worn-Out Components**

Vehicles from this era (1999 2002) are approaching 20 25 years old, which means many parts may be nearing the end of their lifespan. Common issues include worn-out suspension components (shocks, bushings, ball joints), failing drivetrain parts (CV joints, driveshafts, transfer case seals), and aging electrical systems (wiring harnesses, sensors).

2. **Fuel Economy is Poor**

The 4.6L V8 is thirsty, with fuel economy ratings around 12 15 MPG combined. This can lead to higher fuel costs, especially if the vehicle is used frequently for long trips or heavy loads.

3. **Outdated Safety Features**

These Expeditions lack modern safety technologies such as stability control, advanced airbag systems, or electronic braking assistance. The driving dynamics are also less refined compared to newer SUVs, which may feel less responsive or precise.

4. **Rust and Corrosion Concerns**

Many older Ford SUVs from this era suffer from rust, particularly in the wheel wells, rocker panels, and undercarriage. Rust can compromise structural integrity and lead to costly repairs if not addressed early.

5. **Transmission Issues**

The 4R100 or 4R70W transmissions (depending on the model year) can develop problems over time, such as slipping gears, rough shifting, or failure of the torque converter. These issues can be expensive to repair, especially if the transmission is severely worn.

6. **Comfort and Ride Quality**

The standard suspension is firm and designed for off-road use, which can make for a rough ride on paved roads. The lack of modern suspension tuning means less isolation from road imperfections compared to newer SUVs.

7. **Electrical System Reliability**

Older Ford vehicles, including the Expedition, are prone to electrical gremlins, such as faulty wiring, failing fuses, or intermittent issues with sensors or actuators. These problems can be frustrating to diagnose and repair.

8. **Emissions and Modern Regulations**

These vehicles may not meet modern emissions standards if modified or driven in areas with strict regulations. Some states or countries have restrictions on older vehicles, particularly for highway use or in urban areas.

9. **Resale Value is Low**

The Expedition s resale value depreciates quickly, especially compared to newer or more popular SUVs. If you plan to sell it in the future, you may not recover much of your initial investment.

10. **Potential for Hidden Damage**

Without a thorough inspection or service history, it s difficult to know the true condition of the vehicle. Issues like frame damage, engine wear, or transmission problems may not be immediately obvious and could lead to unexpected repair costs.

---

Buying a 1999 2002 Ford Expedition (XL1Z4602BA, 4WD, 4.6L, standard suspension) can be a great choice if you prioritize space, towing capability, and durability for a lower upfront cost. The vehicle s strengths lie in its reliability (when maintained), practicality, and the availability of parts. However, the downsides such as poor fuel economy, outdated safety features, potential rust and mechanical wear, and higher long-term maintenance costs must be carefully considered.

- Need a large, capable SUV for work, off-roading, or hauling.

- Are willing to invest time and money in regular maintenance and potential repairs.

- Prefer a no-frills, functional vehicle over a modern luxury SUV.

- Can afford the higher operational costs (fuel, tires, parts) associated with an older, heavier vehicle.

If you re not prepared for the potential challenges of owning an older SUV or if you prioritize comfort, fuel efficiency, and modern safety features, a newer or more modern SUV may be a better long-term investment.

1. **Get a Pre-Purchase Inspection (PPI):** Hire a trusted mechanic to thoroughly inspect the vehicle for hidden issues, particularly focusing on the drivetrain, suspension, and electrical system.

2. **Review the Service History:** Ensure the vehicle has been regularly maintained, with oil changes, transmission fluid flushes, and other critical services documented.

3. **Check for Rust:** Inspect the undercarriage, wheel wells, and frame for signs of rust or corrosion. Address any issues immediately.

4. **Test the 4WD System:** Verify that the 4WD engages properly and that there are no unusual noises or vibrations when shifting.

5. **Budget for Repairs:** Be prepared for potential repairs, especially if the vehicle has high mileage. Set aside funds for suspension, drivetrain, and electrical system maintenance.

6. **Consider a Lower-Mileage Example:** If possible, opt for a vehicle with under 150,000 miles to reduce the likelihood of major wear-and-tear issues.

7. **Evaluate Alternatives:** If your budget allows, compare this Expedition to newer used SUVs (e.g., 2010 models) that offer better fuel economy, safety, and comfort without sacrificing too much space or capability.

Ultimately, this Expedition can be a fantastic vehicle for the right buyer someone who values functionality and durability over modern conveniences. However, it requires careful consideration and preparation to ensure it remains a reliable and enjoyable vehicle for years to come.

Details:

No time to stop in. We draw on more than 30 years of experience, and no part is too big or small to carry. EXPEDITION 99-02 4x4, 4.6L, standard duty suspension. No expedited shipping is available.

part #: xl1z4602ba prices

• $249.80-$549.98

specifications universajoin:

• for models: 4wd, Expedition
• for makes: Ford
• for years: 1999-2002
• brand: Ford Truck
• mpn: Xl1z4602ba
• model: Expediton
• part type: Driveshaft Suspension
• conditions options: At, Rwd
• genuine oem: Yes
• ipn: 431-04219b
• year: 2001

offer universajoin:

• availability: In Stock
• best offers: True
• quantity: 1
• started: May 16, 2026
• sold: 0
• options: Ship-to-home

returns universajoin:

• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days

seller universajoin:

• rating: 100.0%
• # reviews: 2375
• city: Tucson, Arizona

general universajoin:

• Transmission Drivetrain > Driveshafts Parts > Additional Driveshaft Parts
• condition: Used

shipping universajoin:

payments universajoin:

• other
• credit card: Diners-club
• wallet: Apple-pay

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