Propeller shafts deliver torque from the transmission to the differential the transmits this torque to the wheels in order to move the vehicle. If you are experiencing vibrations from under your vehicle, difficulty turning, or a squeaking noise this could be indicators of a worn down or failing prop shaft that needs replacing. These propeller shafts are made from heat-treated carbon steel that has been powdercoated black for extreme durability. These direct OEM replacement propeller shafts feature a vibration-free design, long-lasting operation, and heavy-duty U-joints with greased fittings.