Which gear range should be selected in a tractor with an automatic transmission while going downhill?

Selecting low range in a tractor with an automatic transmission while going downhill is crucial for maintaining control and safety. The low range setting allows the engine to provide additional braking force through engine braking, which helps to prevent the tractor from gaining excessive speed on a decline. This is particularly important in uneven or steep terrain, where maintaining a safe speed is critical to avoid losing control.

Using low range also ensures that the transmission provides better torque and power at lower speeds, which can be beneficial for navigating through challenging areas. It allows for more precise handling and helps to distribute the vehicle's weight effectively, which is key in off-road situations where stability is necessary.

In contrast, high range and overdrive are designed for higher speeds and can cause the tractor to speed up too quickly when going downhill, reducing the driver's ability to control the vehicle. Selecting neutral would disengage the transmission from the drive wheels, removing any engine braking effect and increasing the risk of losing control. Therefore, opting for low range is the most responsible choice for safety and control when descending a slope with a tractor.