How manual gearboxes work into the gearbox the selector rods and forks move the synchromesh units back and forth according to which gear is selected. What is a synchromesh gearbox and how it is different from a constant mesh gearbox working of a synchromesh gear box is almost similar to that of . The ppt gives you information of shock absorber its 1 introduction 2 construction 3 working 4 principle 5 diagram 6 advantages 7 dis advantages 8 . Full notes on synchromesh gearbox synchromesh gearbox principle in a gearbox working of second gear