Step-by-step explanation:
Both technicians are correct. Technician A is correct that many torsion bars are adjustable to allow for ride height adjustment. This is because the amount of torsion in the bar determines the ride height, so adjusting the torsion can change the ride height. Technician B is correct that torsion bars are usually marked left and right and should not be switched side to side. This is because torsion bars are designed to work with a specific side of the vehicle, so switching them side to side can cause problems with the suspension and handling of the vehicle.