The application provides a gearbox manual gear shifting
stroke measuring mechanism, which is accurate, easy to operate, applicable to any gearbox of the same gear shifting mechanism, portable, practical and high in
utilization rate. The mechanism comprises a main base, a gear shaft, a meshing rack, a horizontal digital display module and a rotating connecting rod. The main base is provided with a gear shaft positioning cavity, a rack guiding cavity and a horizontal digital display module supporting block. The shaft body is vertically installed in the gear shaft positioning cavity through bearings at upper and lower positions. The upper end of the shaft body protrudes from the main base and is fixed with the rotating connecting rod. The lower end of the shaft body protrudes from the main base and is provided with the second gear, which is used for meshing with the gear shifting teeth of the gearbox.