What are the symptoms of a broken driveshaft?

[OJuliette]

The symptoms of a broken driveshaft include: 1. Instantaneous pauses in the rotation of gears on the shaft; 2. Wobbling or misalignment of the pulley rotation on the shaft; 3. Periodic meshing and rotational noise from the gears on the shaft; 4. Reduced diameter at the fitting area between the shaft and rolling bearings, accompanied by higher temperature rise at the bearing position. The driveshaft is a high-speed rotating body with minimal support. Generally, driveshafts undergo dynamic balancing tests before leaving the factory and are adjusted on a balancing machine. For front-engine, rear-wheel-drive vehicles, the driveshaft transmits the rotation from the transmission to the differential axle and may consist of multiple sections connected by universal joints.