Technician A says that driveshaft U-joints are expensive and engineered to last the life of the vehicle.Technician B says that replacing driveline propeller shaft assemblies is a common shop practice.Who is correct?

A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Driveshaft U-joints

Universal joints on a driveshaft that allow for changes in the angle of the transmission of power between components.

Propeller Shaft Assemblies

Components that transmit power from the vehicle's engine or transmission to the differential, allowing for motion in rear-wheel or four-wheel drive vehicles.

Engineered

The process of designing, constructing, and testing structures, materials, and systems based on scientific principles.