What is the Difference Between Full-Time 4WD and On-Demand 4WD?
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Here are the differences between full-time 4WD and on-demand 4WD, including structural and operational differences. Below is a detailed introduction to the different distinctions: Structural Differences: On-demand 4WD has a relatively simple structure, while full-time 4WD has a more complex structure. Power Transmission to Front and Rear Axles Differs: On-demand 4WD has a smaller adjustment range, while full-time 4WD has a larger adjustment range. Operational Differences: On-demand 4WD does not have a separate button in the vehicle, whereas full-time 4WD does. Part-time 4WD vehicles are designed with a transfer device, which may be a transfer case lever or an electronic button or knob. Most on-demand 4WD systems have a separate button in the vehicle labeled "lock," while some are automatically engaged without any button in the vehicle.