Propeller Shaft Vibration
DRIVELINE VIBRATION
| Drive Condition | Possible Cause | Correction |
|---|---|---|
| Propeller Shaft Noise | 1. Undercoating or other foreign material on shaft. | 1. Clean exterior of shaft and wash with solvent. |
| 2. Loose U-joint clamp screws. | 2. Install new clamps and screws and tighten to proper torque. | |
| 3. Loose or bent U-joint yoke or excessive runout. | 3. Install new yoke. | |
| 4. Incorrect driveline angularity. | 4. Measure and correct driveline angles. | |
| 5. Worn joint. | 5. Install new joint. | |
| 6. Propeller shaft damaged or out of balance. | 6. Install new propeller shaft. | |
| 7. Broken rear spring. | 7. Install new rear spring. | |
| 8. Excessive runout or unbalanced condition. | 8. Re-index propeller shaft, test and evaluate. | |
| 9. Excessive drive pinion gear shaft runout. | 9. Re-index propeller shaft and evaluate. | |
| 10. Excessive axle yoke deflection. | 10. Inspect and replace yoke if necessary. | |
| 11. Excessive transfer case runout. | 11. Inspect and repair as necessary. | |
| U-Joint Noise | 1. Loose U-joint clamp screws. | 1. Install new clamps and screws and tighten to proper torque. |
| 2. Lack of lubrication. | 2. Replace joints as necessary. |
Out-of-round tire or wheels that are out of balance, will cause a low frequency vibration.
Brake rotors that are unbalanced will cause a harsh, low frequency vibration.
Driveline vibration can be caused by loose or damaged engine mounts.
Propeller shaft vibration increases with vehicle speed. A vibration that occurs at a specific speed is not usually caused by a out of balance propeller shaft. Worn universal joints or an incorrect propeller shaft angle, can cause such a vibration.