The Manual Steering Gear Box refers to a steering gear and a steering box. These two components are critical parts in a manual steering system. The main purpose of a manual steering gear box is to convert the steering wheels circular motion into your front wheels linear motion. To put it simpler, when you turn your steering wheel in a circle, the steering gearbox makes your front wheels point left or right. Thus, you are able to steer your car, and make turns.
Manual steering gear boxes are most common in older cars and trucks. Newer cars all come with power steering, which means they have power steering gearboxes or power steering racks. Power steering supplies extra assistance in steering your car. This means it takes less effort for you to turn your vehicle. Although, steering a car with a manual steering gearbox takes more muscle some traditionalist still prefer it.