differential side gear的用法和样例：
- rear axle differential side gear
- This differential assembly fits between the axle shafts, with the shafts being splined to the differential side gears.
- Remove differential side bearings from differential case.
- Differential with two differential case halves, a differential spider (or cross),four pinion gears ,and two side gears with washers.
微分差分两个半场情况下，差分蜘蛛（或交叉） ， 4个小齿轮齿轮，和两个侧齿轮垫圈。
- The rear axles are attached to the wheels and have bevel side gears on their inner ends. The differential case is assembled on the left axle But can rotate on a bearing independently of the axle.