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Is it necessary to change the front and rear axle oil?

1 Answers

OLucia

07/25/25 7:28am

Automotive front and rear axles require gear oil replacement. Below are relevant introductions about automotive front and rear axles: 1. Front axle: The front axle is a device that transmits various directional forces between the frame and front wheels, along with the resulting bending moments and torques. Most front axles are non-driven axles, also known as steering axles, typically located at the front end of the vehicle, hence called front axles. They connect to the steering system via steering knuckles, transmitting steering force from the steering gear to the wheels for vehicle steering. Besides supporting the sprung mass at the front of the vehicle and bearing vertical loads, they also withstand various longitudinal forces, lateral forces, and related moments. 2. Rear axle: The rear axle refers to the component of the vehicle's power transmission rear drive shaft. It consists of two half-axles that enable differential movement. Simultaneously, it serves as a device to support and connect the rear wheels. For front-wheel-drive vehicles, the rear axle only functions as a load-bearing component. If the front axle is not the drive axle, then the rear axle becomes the drive axle, serving not only for load-bearing but also for driving, deceleration, and differential functions. In four-wheel-drive vehicles, a transfer case is usually installed ahead of the rear axle. Rear axles are categorized into solid axles and semi-axles.

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