fits model: Rwd, Explorer, Mountaineer. make: Ford, Mercury. year: 2001–2010.

( Brand: A1 Cardone ), ( Manufacturer Part Number: NR99P5 ), ( Part Type: Driveshaft ), ( Placement On Vehicle: Rear ), ( Product Warranty: 12 Month Warranty ), ( Part Info: Remanufactured Driveshaft / Prop Shaft With 64.57 ), ( Years: 2002 2001 2003 2004 2005 2006 2007 2008 2009 2010 02 01 03 04 05 ), ( Makes: Ford Mercury ), ( Models: Explorer Mountaineer ), ( Mfr Label: Remanufactured Driveshaft / Prop Shaft ), ( Important: Please Read All Notes Before Making This Purchase ), ( Cs-sku: 400 )
The **A1 Cardone NR99P5 Rear Driveshaft** is a meticulously engineered, high-performance replacement driveshaft designed specifically for the **2001 2010 Ford Mercury Explorer and Mountaineer** equipped with the **4.0L V6 engine** in rear-wheel-drive (RWD) configurations. Built to exacting standards, this driveshaft is crafted from premium-grade **chromoly steel tubing**, ensuring superior strength, durability, and resistance to fatigue critical for handling the demanding torque output of the 4.0L Triton V6 while maintaining smooth, vibration-free operation. The NR99P5 features a **precision-machined universal joint (U-joint) assembly** at both ends, incorporating **high-capacity needle bearings** and **sealed, corrosion-resistant cages** to minimize wear and extend service life, even under harsh conditions or off-road use. The driveshaft s **balanced construction** eliminates harmful vibrations that can degrade drivetrain components over time, while its **custom-fit spline engagement** ensures a secure, slip-free connection to the transfer case and rear axle, preventing premature failure or noise. Ideal for both original-equipment replacement and performance upgrades, this driveshaft is backed by **A1 Cardone s reputation for reliability**, offering a direct drop-in solution that restores factory-like performance while withstanding the rigors of daily driving, towing, or spirited acceleration. Whether restoring a classic Explorer to its original glory or enhancing the drivetrain of a modern Mountaineer, the NR99P5 delivers the precision, strength, and longevity expected from a leading aftermarket driveshaft manufacturer.
**Pros and Cons of buying a A1 Cardone NR99P5 Rear Driveshaft for a 2001-2010 Ford Mercury Explorer/Mountaineer (4.0L V6 RWD)**
### **Pros:**1. **OEM Replacement Quality** The A1 Cardone NR99P5 is designed as a direct replacement for the original equipment driveshaft, ensuring compatibility with your vehicle s drivetrain. This minimizes the risk of installation issues or premature wear due to mismatched dimensions or mounting points.
2. **Durability and Performance** Cardone is a well-regarded manufacturer known for producing high-quality, long-lasting driveshafts. The NR99P5 is built with robust materials, including heavy-duty tubing and reinforced joints, which can withstand the demands of daily driving, towing, or off-road use better than some aftermarket alternatives.
3. **Balanced Driveshaft** A properly balanced driveshaft reduces vibration, which improves ride comfort and prevents excessive wear on universal joints, bearings, and other drivetrain components. Cardone driveshafts are typically balanced during manufacturing, though you may need to have it rebalanced after installation if the vehicle s driveshaft was previously unbalanced.
4. **Warranty Coverage** Cardone offers a warranty on their driveshafts, which can provide peace of mind in case of manufacturing defects or premature failure. The specific warranty terms should be confirmed when purchasing, but it generally covers a period of 12 to 24 months or a certain number of miles.
5. **Compatibility with Aftermarket Upgrades** If you plan to modify your vehicle (e.g., lift kits, performance tuning, or suspension upgrades), a high-quality driveshaft like the NR99P5 can accommodate these changes better than a cheap or poorly designed alternative. It may also work with aftermarket universal joints or yokes if needed.
6. **Ease of Installation** Since it s an OEM replacement, the NR99P5 should fit your vehicle without requiring extensive modifications. However, installation still requires basic mechanical skills, proper tools, and possibly the help of a second person. If you re not comfortable with driveshaft work, hiring a mechanic may be necessary.
7. **Reliability for Daily Use** For most daily drivers, this driveshaft will perform reliably without issues, especially if the vehicle is not subjected to extreme conditions (e.g., heavy towing, frequent off-roading, or aggressive driving).
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### **Cons:**1. **Cost** The A1 Cardone NR99P5 is not a budget-friendly option. Prices typically range between $300 and $500, depending on the retailer and any additional accessories (e.g., universal joints, yokes, or balancing). This can be a significant investment if you re on a tight budget or if the driveshaft fails unexpectedly.
2. **Potential for Counterfeit or Low-Quality Copies** Cardone driveshafts are popular, which means there s a risk of purchasing a counterfeit or inferior knockoff, especially from untrusted online sellers. Always buy from authorized dealers, reputable retailers, or directly from Cardone s website to avoid this issue.
3. **Installation Challenges** While the NR99P5 is designed to fit, installation can be tricky for inexperienced DIYers. Common pitfalls include:- Difficulty removing the old driveshaft due to seized joints or rusted components.
- Misalignment of the yokes or universal joints, which can cause vibration or premature wear.
- Forgetting to rebalance the driveshaft after installation, leading to excessive vibration.
If you re not confident in your mechanical skills, professional installation is recommended.
4. **Limited Customization** Unlike some aftermarket driveshafts, the NR99P5 is a stock-length replacement. If you ve modified your vehicle (e.g., lifted it or changed the axle ratio), you may need to source a custom-length driveshaft or adjust the existing one, which could require additional parts or professional help.
5. **Weight** Driveshafts are inherently heavy, and the NR99P5 is no exception. If you re frequently towing or dealing with a heavily loaded vehicle, the weight of the driveshaft could contribute to drivetrain fatigue over time, especially if other components (e.g., bearings, joints) are worn.
6. **Potential for Pre-Existing Issues** If the driveshaft you re replacing was already failing (e.g., due to a cracked yoke, worn bearings, or a broken joint), the new NR99P5 may still fail if the underlying cause (e.g., improper maintenance, abuse, or manufacturing defect) isn t addressed. Always inspect the old driveshaft for signs of damage before purchasing a replacement.
7. **Balancing Requirements** Even if the driveshaft is balanced at the factory, it may need to be rebalanced after installation if the vehicle s driveshaft was previously unbalanced or if the new driveshaft was damaged during shipping or handling. Balancing adds to the cost and time required for installation.
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### **Conclusion:**The **A1 Cardone NR99P5 rear driveshaft** is a solid choice for replacing the OEM driveshaft in your 2001-2010 Ford Mercury Explorer/Mountaineer (4.0L V6 RWD) if you prioritize durability, reliability, and compatibility. It offers the peace of mind of OEM-quality parts and is well-suited for daily driving, light towing, and most aftermarket modifications. However, it comes at a higher cost than some aftermarket alternatives, and installation requires careful attention to detail to avoid common pitfalls like vibration or premature wear.
If you re comfortable with mechanical work and can afford the upfront cost, the NR99P5 is a **recommended choice** for a long-term, high-quality replacement. If you re on a tight budget or need a more budget-friendly option, you may want to explore other reputable brands (e.g., Mopar, GMB, or other Cardone alternatives) while still ensuring compatibility and warranty coverage.
**Final Recommendation:** - **Buy the A1 Cardone NR99P5** if:- You want a direct OEM replacement with proven durability.
- You re willing to invest in a high-quality driveshaft for reliable performance.
- You plan to install it yourself or have a trusted mechanic do it.
- You re not modifying your vehicle in ways that would require a custom driveshaft.
- **Consider alternatives** if:- You re looking for a more budget-friendly option (e.g., GMB or other aftermarket brands).
- Your vehicle has significant modifications that may require a custom driveshaft.
- You re uncomfortable with the installation process and prefer to have a professional handle it.
Always purchase from an authorized dealer or reputable seller to avoid counterfeit parts, and ensure the driveshaft is properly balanced after installation. Regular maintenance (e.g., checking universal joints, bearings, and grease fittings) will extend its lifespan.
All slip yokes are lubricated to prevent premature wear. Remanufactured Driveshaft / Prop Shaft. Form, fit and function. Ford Explorer 2001 - 2010 RWD 4.0L V6.
100% NEW universal joints are installed to ensure proper fit and optimal performance. Units are 100% dynamically balanced at 3200 PMS for vibration-free operation and increased joint life. Built to match.E.