A differential gearbox including a disk on the input side, a first drive part that is non-rotatably connected to a first driven axle, and a second drive part that is non-rotatably connected to a second driven axle. A planetary gear arrangement is provided between the first drive part and the second drive part for transmitting torque from the disk on the input side to the first drive part and the second drive part. The first drive part is a first drive disk and includes a concavity radially outwardly of the first driven axle. The second drive part is a second drive disk extending radially outwardly of the second driven axle. The concavity is directed away from the second drive disk. The planetary gear arrangement is disposed in a space that is formed by the concavity of the first drive disk and the opposing region of the second drive disk.