Grand Cherokee 2WD V8-5.7L VIN 2 (2005)
7. Mark and number the shaft six inches from the yoke end at four positions 90° or 45° apart depending on flange.
8. Run and accelerate the vehicle until vibration occurs. Note the intensity and speed the vibration occurred. Stop the engine.
9. Install a screw clamp (1) at position 1.
10. Start the engine and re-check for vibration. If there is little or no change in vibration, move the clamp to one of the other three positions. Repeat
the vibration test.
11. If there is no difference in vibration at the other positions, the source of the vibration may not be propeller shaft.
12. If the vibration decreased, install a second clamp (1) on the shaft (2) and repeat the test.
13. If the additional clamp causes an additional vibration, separate the first clamp (1) and second clamp (2) (1/4 inch above and below the mark).
Repeat the vibration test.
14. Increase distance between the clamp screws and repeat the test until the amount of vibration is at the lowest level. Bend the slack end of the clamps
so the screws will not loosen.
15. If the vibration remains unacceptable, apply the same steps to the front end of the propeller shaft.
16. Install the wheel and tires. Lower the vehicle.
