CTS V6-3.2L VIN N (2003)
Drive/Propeller Shaft: Description and Operation
Propeller Shaft Description and Operation
The propeller shaft is a tube with universal joints at both ends which do not require periodic maintenance, that transmit power from the transfer case or
transmission output shaft to the differential.
Two Piece Propeller Shaft Description
There are 2 universal joints used on the two piece propeller shaft. A center bearing assembly is used to support the propeller shaft connection point,
and help isolate the vehicle from vibration.
Propeller Shaft Phasing Description
The propeller shaft is designed and built with the yoke lugs, ears, in line with each other. This produces the smoothest running shaft possible. A
propeller shaft designed with built in yoke lugs in line is known as in - phase. An out of phase propeller shaft often causes vibration. The propeller
shaft generates vibration from speeding up and slowing down each time the universal joint goes around. The vibration is the same as a person
snapping a rope and watching the wave reaction flow to the end. An in phase propeller shaft is similar to 2 persons snapping a rope at the same time
and watching the waves meet and cancel each other out. A total cancellation of vibration produces a smooth flow of power in the drive line. All
splined shaft slip yokes are keyed in order to ensure proper phasing.
