When it comes to modifying your vehicle's driving capability, converting an AWD transfer case to 4WD can enhance its off-road abilities and provide better control during severe weather conditions. This guide will walk you through the different methods and components required to achieve this conversion, including the installation of a locking center differential, exploring the options available, and addressing cost considerations. Additionally, we will clarify the distinctions between full-time and part-time 4WD, and provide guidance on how to determine if your vehicle already supports such a setup.
Overview of AWD and 4WD
An AWD (All-Wheel Drive) system operates by distributing power to the front and rear axles, allowing them to rotate at different speeds when necessary. This is particularly useful in slippery conditions where the tires need to grip the road surface independently. The key feature of AWD is the ability to balance the power distribution to ensure traction and stability.
On the other hand, a 4WD (Four-Wheel Drive) system is designed to provide power to all four wheels at all times. This setup offers superior traction and climbing ability when the ground conditions require it. A 4WD system typically uses a center differential to manage the power distribution between the front and rear axles, ensuring that both sets of wheels receive equal torque.
Converting AWD to 4WD: The Role of the Center Differential
The most critical component in this conversion process is the center differential. If your AWD system does not have one, you would need to install a locking center differential. A locking center differential forces the front and rear axles to rotate at the same speed, providing a more robust connection between the wheels and thus enhancing off-road capabilities and towing abilities.
However, installing a locking center differential is not always feasible or financially viable. It is essential to consider the cost and complexity of the conversion, especially if the components are not readily available as part of the original vehicle's configuration. In many cases, it might be more practical to replace the vehicle with a model that already supports full-time 4WD, as these setups tend to be more reliable and have better performance out-of-the-box.
Fully-Time VS Part-Time 4WD
The distinction between full-time and part-time 4WD is crucial when considering the conversion process. A full-time 4WD system continuously distributes power to all four wheels, while a part-time 4WD system allows the driver to switch between 2WD (two-wheel drive) and 4WD modes manually. Full-time 4WD tends to be more reliable and easier to manage, as the system operates continuously, but part-time 4WD offers more flexibility for the driving conditions.
Identifying the Right Conversion Path
To determine if your AWD vehicle can be converted to 4WD, check the vehicle's documentation and consult with a professional mechanic. If your vehicle has a 2x4/4x4 selector lever that allows the driver to switch between two-wheel and four-wheel drive, it may already have the necessary components to support a center differential conversion. However, if this selector lever is missing or the AWD system is fully integrated, the conversion process may be challenging and more costly.
Conclusion
Converting an AWD transfer case to 4WD is a complex task that requires careful consideration of the vehicle's design and components. While a locking center differential can significantly enhance off-road performance, the cost and practicality of the conversion should be evaluated before proceeding. Understanding the difference between full-time and part-time 4WD, and properly identifying the vehicle's current setup, are key steps in determining the best approach to achieving your driving objectives.