The key shaft is splined so gears could go; both interact and disengage in an even better way. The neutral gear is the standpoint through which no equipment is engaged with the countershaft. CVT means Consistently Variable Transmission. It's a form of automatic gearbox, nevertheless it differs from regular components https://gearboxauto66430.full-design.com/a-simple-key-for-gearbox-auto-unveiled-76199269