Among the manual transmissions is the Wilson pre-selector, launched in 1930 used to be a planetary gear method to preselect equipment ratios by functioning a little lever to the steering segment.  Change equipment ratio: The gearbox alterations gear ratio to match driving circumstances. It enables the driver to manually change https://gearbox-auto31963.blogunok.com/33978397/helping-the-others-realize-the-advantages-of-gearbox-auto