This axle is manufactured with Steyr technology. It adopts the structure of steel plate pressing., welding axle housing and dual—type of constant—velocity universal joint to make sure that the input shaft and the output shaft have a reliable movement and have a big angle between them. It can completely meet the needs of front driving and steering. It is a satisfactory fitting for heavy—duty off—road vehicle. This axle is mainly equipped for AUMAN heavy—duty truck. The clearance self—adjusting arm., ABS system and several gear ratio can be selected. The tyre: 11 .00R20 or 1 2.00R20.