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What is a Gearbox?

2 Answers

MacEmilia

08/27/25 3:04am

Gearbox refers to the transmission system. There are two types of transmissions in automobiles: manual transmission and automatic transmission. Automatic transmissions include AT (automatic transmission), CVT (continuously variable transmission), and dual-clutch transmission. AT Transmission: This is the most mature and widely used transmission. AT transmission is also known as torque converter transmission, known for its reliability, durability, and smooth gear shifting. CVT Transmission: This type of transmission is also called continuously variable transmission. CVT transmissions are commonly used in some Japanese cars, offering excellent fuel efficiency. CVT transmissions are compact, lightweight, and have good durability. DCT Transmission: Also known as dual-clutch transmission. This type of transmission is structurally similar to manual transmissions, featuring two sets of clutches that control odd and even gears respectively. Dual-clutch transmissions provide fast gear shifting and high transmission efficiency.

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MacChristian

09/09/25 2:17am

The gearbox is essentially the transmission in a car, serving as a core component responsible for transferring the engine's power to the wheels through different gear ratios, allowing the vehicle to adjust speed and torque based on road conditions. After driving for so many years, I've found that the quality of the gearbox directly impacts the driving experience. For example, manual transmissions require clutch engagement for shifting, offering strong control but can be tiring in city driving; automatic transmissions provide smarter control, making long-distance driving more effortless. Regular maintenance should include checking whether the transmission fluid is replaced on schedule, as poor-quality or leaking fluid can cause jerking, unusual noises, or even malfunctions—routine upkeep can prevent costly overhauls. Nowadays, many new cars come equipped with CVTs or dual-clutch transmissions, improving fuel efficiency and smoothness.

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