Drive train of a four-wheel drive vehicle, especially a competition vehicle

Drive train of a four-wheel drive vehicle, especially a competition vehicle in which, for adjustment of the overall ratio, a reduction gearing 5 is provided between clutch 2 and speed change and reversing gear 6, and a transfer box 22 for adjustment of the torque distribution to the two driving axles 37, 42. According to the invention both the reduction gearing 5 and the transfer box 22 are arranged in housing parts 10 and 23 respectively, which can be divided in a plane perpendicular to the transmission shafts along parting lines 15 and 24. The transmission-forming gears 7, 9 of the reduction gearing 5 and the planetary gear train of the transfer box 22 are supported in the housing parts 10 and 23 by way of their hubs 11, 12 or the hub 29 of a driven gear 30, whilst the shafts, such as the input shaft 3, transmission main shaft 8 and planet carrier shaft 21, stub shaft 34, output shaft 36 and 41 are connected, rotationally fixed, to the respective gears or adjoining shafts by way of socket connections, but remain axially separable. A very rapid adjustment of the reduction gearing and of the transfer box to a specific race track is thereby possible.