Q. What is the function of truck chassis?

The chassis or "Frame" is the underpinning framework that keeps a vehicle upright. The chassis's job is to support the vehicle when it's not in motion and when it is. Since this is the case few people probably give much thought to the chassis of their vehicle. In order to transport passengers or cargo inside the body. As a result of the weight of the car's body engine gearbox steering system Propeller shaft etc. Consider the loads caused by poor road conditions and the forces caused by rapid braking or acceleration.