NP231 & NV231 Transfer Cases For Sale

Product details

Overview of NP231 & NV231 Transfer Cases

Are you experiencing NP231 transfer case problems? Look no further! Spoon Parts USA offers a premium selection of remanufactured and rebuilt New Venture Gear NV231 transfer cases, meticulously restored to meet or exceed OEM specifications. The NP231, also commonly referred to as the NV231, is a renowned part-time, chain-driven transfer case celebrated for its durability and widespread use in various 4×4 applications, particularly popular in Jeep vehicles.

Known for its robust design, the NP231 provides drivers with dependable 2-wheel drive high, 4-wheel drive high, and 4-wheel drive low options, making it an ideal choice for both daily driving and off-road adventures. When you choose a transfer case from Spoon Parts USA, you’re not just buying a replacement part; you’re investing in reliability and performance. Our extensive inventory ensures you can find the perfect NV231 transfer case to get your vehicle back on the road or trail with confidence.

We understand the importance of a fully functional drivetrain, which is why we meticulously recondition each unit. Whether you need an Np231 Transfer Case for a specific build or a direct replacement, our reconditioned units offer an economical and reliable solution compared to buying new. Don’t let a faulty transfer case sideline your adventures; explore our range and secure your premium replacement today!

Key Features and Specifications

Our remanufactured NP231 and NV231 transfer cases boast a range of features designed for optimal performance and longevity:

• Robust Construction: Each unit is built with high-quality components and undergoes rigorous testing.
• Part-Time 4WD: Offers 2Hi, 4Hi, and 4Lo modes for versatile driving conditions.
• Chain-Driven Design: Known for its strength and reliability in transferring power.
• Gear Ratios: Typically features a 2.72:1 low-range gear ratio for improved off-road torque.
• Input Spline Options: Available with various input spline counts to match different transmissions.
• Slip Yoke Eliminator (SYE) Compatibility: Many units can be upgraded with an SYE for enhanced driveline angles and reduced vibration, especially in lifted vehicles.

Detailed Specifications Overview:

• Part Number: NP231 / NV231
• Manufacturer: New Venture Gear (NVG)
• System Type: Part-Time Four-Wheel Drive
• Low Range Ratio: 2.72:1
• High Range Ratio: 1:1
• Input Shafts: Varies by application (e.g., 21-spline, 23-spline)
• Output Shafts: Front and Rear (rear typically with slip yoke unless converted)
• Case Material: Aluminum
• Free Shipping: Included with every purchase within the continental USA.
• Warranty: Industry-leading 3-year warranty for peace of mind.

Applications and Fitment

The NP231 / NV231 transfer case is incredibly versatile and was installed in a wide range of popular 4×4 vehicles. Our rebuilder experts ensure that our units are compatible with the original applications, making your replacement process straightforward. This transfer case is most famously associated with Jeep vehicles, providing robust off-road capability.

Common Vehicle Applications Include:

• Jeep Wrangler YJ (1987-1995)
• Jeep Wrangler TJ (1997-2006)
• Jeep Cherokee XJ (1987-2001)
• Jeep Comanche MJ (1987-1992)
• Jeep Grand Cherokee ZJ (early models, check specific year)
• Dodge Dakota
• Dodge Ram 1500
• Chevrolet S10 / GMC Sonoma

It’s crucial to correctly identify your specific vehicle’s needs, including the input shaft spline count and any necessary speedometer gear provisions. When considering your purchase, double-check your existing unit’s tag or consult your vehicle’s service manual. For those specifically looking for a replacement for a popular Jeep model, our 231J Transfer Case 87-06 Wrangler, Liberty, & Cherokee is an excellent option, pre-fitted for these well-loved vehicles.

Installation Notes and Tips

While installing a transfer case can be a challenging task, proper preparation and tools can make the process smoother. Always refer to your vehicle’s specific service manual for detailed instructions and torque specifications. Here are a few general tips:

• Fluid Type: Use only the manufacturer-recommended transfer case fluid.
• Gaskets & Seals: Ensure all new gaskets and seals are used during installation.
• Driveline Angles: After installation, especially if your vehicle is lifted, inspect driveline angles. You may need a slip yoke eliminator (SYE) or an adjustable drive shaft for optimal performance and to prevent vibration. Consider upgrading to a heavy-duty NP231 231 J Jeep Transfer Case Yoke for enhanced durability.
• Crossmember & Mounts: Inspect and replace worn transmission and transfer case mounts for a stable installation.
• Professional Installation: If you are not comfortable performing the installation yourself, we highly recommend professional assistance.

Quality and Warranty from Spoon Parts USA

At Spoon Parts USA, quality is our top priority. Every remanufactured and rebuilt NP231 and NV231 transfer case undergoes a stringent rebuilding process. This includes:

• Complete Disassembly: Each unit is fully disassembled, and all components are thoroughly inspected.
• Component Replacement: Worn or damaged parts are replaced with new, high-quality equivalents, including chains, bearings, seals, and any internal hard parts that don’t meet our strict standards.
• Precision Machining: Cases and shafts are inspected for wear and machined where necessary.
• Rigorous Testing: After reassembly, every transfer case is dynamically tested to ensure proper function and leak-free operation under simulated driving conditions.

We stand behind the superior quality of our products with an outstanding 3-year warranty. This commitment to excellence provides you with peace of mind, knowing your investment is protected. We are confident that our reconditioned NP231/NV231 units will deliver exceptional performance and longevity.

Why Buy From Spoon Parts USA?

Choosing Spoon Parts USA for your NP231 or NV231 transfer case replacement means opting for unparalleled service, quality, and value. Here’s why customers consistently choose us:

• Expertise: We specialize in transmissions, transfer cases, and drivetrain parts, offering focused knowledge and assistance.
• Quality Assurance: Our rigorous remanufacturing process ensures you receive a product that performs like new.
• Free Shipping: Enjoy the convenience and cost savings of free shipping directly to your door within the continental USA.
• Exceptional Warranty: Our industry-leading 3-year warranty provides unmatched reliability and customer protection.
• Customer Support: Our knowledgeable team is here to assist you with any questions or help you find the right part.
• Trusted Source: We are a reputable US retailer committed to providing the best parts for your vehicle.

Don’t compromise on your vehicle’s performance. When it’s time to replace your old or failing transfer case, trust Spoon Parts USA to deliver a high-quality, reliable solution. Buy your remanufactured NP231 or NV231 transfer case today and experience the difference!

Frequently Asked Questions (FAQ)

What does remanufactured mean for a transfer case?

A remanufactured transfer case has been completely disassembled, cleaned, inspected, and all worn or damaged components (like bearings, seals, and chains) are replaced with new or reconditioned parts. It then undergoes rigorous testing to ensure it meets or exceeds original factory specifications.

How do I know if my NP231 transfer case is failing?

Common symptoms of a failing NP231 or NV231 transfer case include grinding noises, difficulty shifting into 4WD (or inability to engage it), popping out of 4WD, fluid leaks, clunking sensations, or vibrations, especially under acceleration.

Is the NP231 a good transfer case for off-roading?

Yes, the NP231 is widely regarded as an excellent and highly capable transfer case for off-roading, particularly when equipped with its 2.72:1 low-range gearing. Its robust design and aftermarket support make it a favorite among Jeep enthusiasts.

What is the difference between NP231 and NV231?

There is no functional difference. NP231 stands for ‘New Process’ 231, while NV231 stands for ‘New Venture’ 231. New Venture Gear (NVG) was a joint venture between General Motors and Chrysler, and they continued the design under the ‘NV’ designation. They are essentially the same unit.

Does Spoon Parts USA charge for core returns?

Yes, like most transfer case suppliers, there is a core charge. This charge is fully refunded to you once we receive your old, rebuildable transfer case core back at our facility. Instructions for core return are included with your purchase.

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• NP231 231 J Jeep Transfer Case Yoke
• Np231 Transfer Case
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