Patent ID: 6935979

Claim:
A transmission mechanism of an automotive vehicle comprising: a first gear connected with a motor of the automotive vehicle; a propeller shaft, on which a sliding gear and a second gear are mounted; a differential mechanism including a left side bevel gear, a planetary gear bracket and a right side bevel gear; a core shaft passing through the differential mechanism; a dual tandem gear mounted on the core shaft; a third gear mounted on the core shaft and meshing with the second gear; two rear wheel output shafts disposed in parallel below the core shaft; a fourth gear and a fifth gear mounted on the two rear wheel output shafts, respectively, and engaged to the right side bevel gear and the left side bevel gear, respectively; and two front wheel output shafts removably connected with the two rear wheel output shafts, respectively, wherein the sliding gear can be regulated to engage either the first gear or the dual tandem gear so that the propeller shaft can obtain different rotate speeds.