These utilised synchronizers to match equipment speeds, allowing for for smoother shifts and simpler driving. The mid-20th century noticed the introduction of automatic transmissions.  Yes, there are extra forms of gearboxes when you account for finer distinctions, State-of-the-art variations, plus more specialized use conditions. Listed below are supplemental gearbox varieties https://gearbox-kereta-auto32075.blogoscience.com/38696381/the-basic-principles-of-gearbox-auto