You may think that all transmissions are alike in cars and trucks, but that's wrong. Beyond the use of automatic and manual transmissions, cars and light trucks often have a different set of transmissions than what you find in motor homes, delivery vans and other commercial vehicles. With different sizes and a wide array of gears, most trucks are a little more complex to handle than the average vehicle. So it may seem like you need to go some place different to get your transmission repaired. However, the professionals at Mr. Transmission want you to know that your vehicles are welcome here.
The main difference between transmissions in commercial vehicles and passenger vehicles is size. While some motor homes may have lesser gears, the size is still pretty larger. Many trucks and motor homes, however, use a larger number of gears than cars and light trucks usually possess. Sometimes, they'll have up to nine gears to shift between. This is especially the case with box trucks, which are considered a step below semis. This is because they have larger engines that are capable of carrying significant loads of cargo and thus need extra power to drive.
More importantly, though, many trucks have a slightly different form of manual transmission, called an unsynchronized manual transmission. This means it lacks a part called a synchronizer that allows the gears to latch when shifting with the clutch. With this type of transmission, however, it means that not only does the driver have to shift gears, but he or she also has to manually get the transmission to match the speed of the gear to latch on properly. This requires a technique called double-clutching, which requires moving the clutch to neutral every time you switch a gear. Recently, more commercial trucks are using automatic transmissions, but many trucking businesses still require learning to drive in manual.
For more information on truck transmissions, visit the Mr. Transmission website!