The invention belongs to the field of automobile parts, and particularly relates to a novel differential. The novel differential comprises a machine case; a left output half shaft and a right output half shaft are arranged in the machine case; the outer circle face of the left output half shaft is sequentially sleeved with a first left half shaft gear, a first transmission gear and a second left half shaft gear from left to right; the first left half shaft gear and the second left half shaft gear are fixed to the outer circle face of the left output half shaft; teeth on the first left half shaft gear and the second left half shaft gear are opposite in rotating direction; the left side and the right side of the first transmission gear are provided with teeth engaged with the first left half shaft gear and the second left half shaft gear; the structure of the right output half shaft is the same as that of the left output half shaft; the exteriors of the left output half shaft and the right output half shaft are wrapped by transmission sleeves which can slide in the axis direction of the left output half shaft; the inner walls of the transmission sleeves are connected with the first transmission gear and a second transmission gear correspondingly; and shifting fork rings and driven gear rings are arranged on the outer walls of the transmission sleeves. The device is simplified in structure and low in cost.