DIFFERENTIAL GEAR ASSEMBLY AND COMPONENTS THEREOF

A differential gear assembly (1) comprises a casing (10) extending along a longitudinal drive axis (LA) and adapted to receive end gears (21,22) of first and second half shafts of a vehicle drive axle, wherein the casing comprises at least one opening (14a,14b) extending perpendicular to the drive axis between outer and inner surfaces (101,102) of the casing; a first gear shaft (31a,31b) receivedwithin the at least one opening (14a,14b) of the casing; a first differential side gear (51,52) adapted to mesh with end gears of said first and second half shafts, the side gear being rotatably mounted on the first gear shaft (31a,31b); wherein the gear assembly further comprises at least one fastening member (61) adapted to fix the first gear shaft (31a,31b) with respect to the casing, and wherein the assembly is arranged in such a way that the at least one fastening member (61) is visible from the outer bearing surface (102) of the casing. 种差速器齿轮组件(1)，包括：外壳(10)，所述外壳沿着纵向驱动轴线(LA)延伸并且被适配成用于接纳车辆驱动桥的第半轴和第二半轴的末端齿轮(21，22)