What is part time 4wd?

Part-time four-wheel drive (4WD) refers to a system in which the driver can manually engage the four-wheel drive system when needed, typically in off-road or low-traction situations. This is in contrast to full-time 4WD systems, which constantly deliver power to all four wheels.

Part-time 4WD systems are commonly found in trucks, SUVs, and other off-road vehicles, and offer increased traction and power when driving on challenging terrain such as sand, mud, snow, or uneven surfaces. The driver can switch between two-wheel drive (typically rear-wheel drive) and four-wheel drive modes using a switch or lever inside the vehicle.

While part-time 4WD provides additional traction and off-road capability, it is not recommended for use on dry pavement or in normal driving conditions, as it can lead to increased wear on the drivetrain components. It is important to follow the manufacturer's guidelines for engaging and disengaging the 4WD system to ensure safe and proper operation.