What is an open differential?

An open differential is a type of differential that allows for the wheels on the same axle to rotate at different speeds, while still allowing the vehicle to drive in a straight line. This type of differential is commonly found in most standard passenger vehicles.

In an open differential, power is distributed equally to both wheels, but if one wheel loses traction, the power will be transferred to the wheel with the least resistance, causing it to spin. This can be helpful in low traction situations, allowing the vehicle to continue moving forward.

However, in situations where one wheel has significantly more traction than the other, such as when driving on ice or off-road terrain, an open differential may not be sufficient. In these cases, a limited-slip differential or a locking differential may be a better option to ensure power is distributed evenly to both wheels.

Overall, open differentials are cost-effective and provide adequate performance for everyday driving conditions, but may not be as effective in more challenging driving situations.