Before beginning diagnosis, review the system description  and operation in
order to familiarize yourself with the system function. Referto  
Propeller Shaft Description and Operation 
.
Classifying the Symptom
Propeller Shaft symptoms can usually be classified into the following  categories:
Leak and noise related symptoms are diagnosed within the Propeller Shaft  section.
For vibration related symptoms, refer to 
Diagnostic Starting Point - Vibration Diagnosis and Correction 
 in
Vibration  Diagnosis and Correction for diagnosis.
Visual/Physical Inspection
|     •  | Inspect the system for aftermarket devices which could affect  the operation
of the Propeller Shaft. | 
 
|     •  | Inspect the easily accessible or visible system components for  obvious
damage or conditions which could cause the symptom. | 
 
Symptom List
Refer to a symptom diagnostic procedure from the following list in order  to
diagnose the symptom: