Propeller Shaft Description and Operation: Notes

The function of the propeller shaft is to transfer power from the transfer case to the differential clutch. It consists of three pipe sections, a front constant velocity joint or CV (Rzeppa) joint, two universal joints (Cardan or Polhem joints) in the center, one on each end of the center shaft section and a rear CV joint. The propeller shaft's support bearings are fitted by the universal joints. The bearings are mounted in rubber bushings which are fitted in brackets, and these in turn are bolted to the underside of the vehicle. The position of the brackets is very precisely measured during vehicle manufacture. The propeller shaft does not run in a straight line between the transfer case and the differential clutch but is instead gently curved, and this is to avoid vibration.