Eight-gear high-low speed rear axle transmission case

The utility model discloses an eight-gear high-low speed rear axle transmission case comprising a rear axle transmission case body, an input shaft, an output shaft and at least two transmission shafts, wherein the input shaft, the output shaft and the at least two transmission shafts are arranged on the rear axle transmission case body in parallel; the input shaft, the transmission shafts and the output shaft are respectively provided with at least two gears; the output shaft is connected with a differential mechanism through the gears; a high-speed free gear, a high-low gear sliding gear and a reverse-gear dual gear are sequentially sheathed on the input shaft; a high speed gear and a gear gear are sheathed on the first transmission shaft; a transmission gear, a dual gear sliding gear and a gear sliding gear are sheathed on the second transmission shaft; and the output shaft is fixedly provided with a transition gear and an output gear which are meshed with the transmission gears. With the eight-gear high-lo