There is no centre (inter-axle) differential. This has a positive effect that at least two wheels, where each wheel is on a different axle, have to lose traction in order for the vehicle to lose traction when in 4WD transmission mode. However, the negative effect is that 4WD transmission mode must not be used on any surface which is not rather slippery, especially if having to steer. In other words, 4WD transmission mode should be used only on rather slippery surfaces, like snow, ice, mud, loose gravel, wet grass and sand. Wet asphalt, wet concrete and hard-packed gravel are not considered slippery enough. All this is irrelevant when not using 4WD transmission mode.